638363520

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{307}}^1$

素因数の和:370

約数の個数: 288

約数和(自身を含む): 2334051720

約数和(自身を除く): 1695688200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 64, 72, 76, 80, 90, 95, 96, 114, 120, 128, 144, 152, 160, 171, 180, 190, 192, 228, 240, 285, 288, 304, 307, 320, 342, 360, 361, 380, 384, 456, 480, 570, 576, 608, 614, 640, 684, 720, 722, 760, 855, 912, 921, 960, 1083, 1140, 1152, 1216, 1228, 1368, 1440, 1444, 1520, 1535, 1710, 1805, 1824, 1842, 1920, 2166, 2280, 2432, 2456, 2736, 2763, 2880, 2888, 3040, 3070, 3249, 3420, 3610, 3648, 3684, 4332, 4560, 4605, 4912, 5415, 5472, 5526, 5760, 5776, 5833, 6080, 6140, 6498, 6840, 7220, 7296, 7368, 8664, 9120, 9210, 9824, 10830, 10944, 11052, 11552, 11666, 12160, 12280, 12996, 13680, 13815, 14440, 14736, 16245, 17328, 17499, 18240, 18420, 19648, 21660, 21888, 22104, 23104, 23332, 24560, 25992, 27360, 27630, 28880, 29165, 29472, 32490, 34656, 34998, 36480, 36840, 39296, 43320, 44208, 46208, 46664, 49120, 51984, 52497, 54720, 55260, 57760, 58330, 58944, 64980, 69312, 69996, 73680, 86640, 87495, 88416, 93328, 98240, 103968, 104994, 109440, 110520, 110827, 115520, 116660, 117888, 129960, 138624, 139992, 147360, 173280, 174990, 176832, 186656, 196480, 207936, 209988, 221040, 221654, 231040, 233320, 259920, 262485, 279984, 294720, 332481, 346560, 349980, 353664, 373312, 415872, 419976, 442080, 443308, 466640, 519840, 524970, 554135, 559968, 589440, 664962, 693120, 699960, 746624, 839952, 884160, 886616, 933280, 997443, 1039680, 1049940, 1108270, 1119936, 1329924, 1399920, 1662405, 1679904, 1768320, 1773232, 1866560, 1994886, 2079360, 2099880, 2216540, 2239872, 2659848, 2799840, 3324810, 3359808, 3546464, 3733120, 3989772, 4199760, 4433080, 4987215, 5319696, 5599680, 6649620, 6719616, 7092928, 7979544, 8399520, 8866160, 9974430, 10639392, 11199360, 13299240, 14185856, 15959088, 16799040, 17732320, 19948860, 21278784, 26598480, 31918176, 33598080, 35464640, 39897720, 42557568, 53196960, 63836352, 70929280, 79795440, 106393920, 127672704, 159590880, 212787840, 319181760, 638363520]

約数ペア:

[(1, 638363520), (2, 319181760), (3, 212787840), (4, 159590880), (5, 127672704), (6, 106393920), (8, 79795440), (9, 70929280), (10, 63836352), (12, 53196960), (15, 42557568), (16, 39897720), (18, 35464640), (19, 33598080), (20, 31918176), (24, 26598480), (30, 21278784), (32, 19948860), (36, 17732320), (38, 16799040), (40, 15959088), (45, 14185856), (48, 13299240), (57, 11199360), (60, 10639392), (64, 9974430), (72, 8866160), (76, 8399520), (80, 7979544), (90, 7092928), (95, 6719616), (96, 6649620), (114, 5599680), (120, 5319696), (128, 4987215), (144, 4433080), (152, 4199760), (160, 3989772), (171, 3733120), (180, 3546464), (190, 3359808), (192, 3324810), (228, 2799840), (240, 2659848), (285, 2239872), (288, 2216540), (304, 2099880), (307, 2079360), (320, 1994886), (342, 1866560), (360, 1773232), (361, 1768320), (380, 1679904), (384, 1662405), (456, 1399920), (480, 1329924), (570, 1119936), (576, 1108270), (608, 1049940), (614, 1039680), (640, 997443), (684, 933280), (720, 886616), (722, 884160), (760, 839952), (855, 746624), (912, 699960), (921, 693120), (960, 664962), (1083, 589440), (1140, 559968), (1152, 554135), (1216, 524970), (1228, 519840), (1368, 466640), (1440, 443308), (1444, 442080), (1520, 419976), (1535, 415872), (1710, 373312), (1805, 353664), (1824, 349980), (1842, 346560), (1920, 332481), (2166, 294720), (2280, 279984), (2432, 262485), (2456, 259920), (2736, 233320), (2763, 231040), (2880, 221654), (2888, 221040), (3040, 209988), (3070, 207936), (3249, 196480), (3420, 186656), (3610, 176832), (3648, 174990), (3684, 173280), (4332, 147360), (4560, 139992), (4605, 138624), (4912, 129960), (5415, 117888), (5472, 116660), (5526, 115520), (5760, 110827), (5776, 110520), (5833, 109440), (6080, 104994), (6140, 103968), (6498, 98240), (6840, 93328), (7220, 88416), (7296, 87495), (7368, 86640), (8664, 73680), (9120, 69996), (9210, 69312), (9824, 64980), (10830, 58944), (10944, 58330), (11052, 57760), (11552, 55260), (11666, 54720), (12160, 52497), (12280, 51984), (12996, 49120), (13680, 46664), (13815, 46208), (14440, 44208), (14736, 43320), (16245, 39296), (17328, 36840), (17499, 36480), (18240, 34998), (18420, 34656), (19648, 32490), (21660, 29472), (21888, 29165), (22104, 28880), (23104, 27630), (23332, 27360), (24560, 25992)]