638883360

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1229}}^1$

素因数の和:1288

約数の個数: 216

約数和(自身を含む): 2302847820

約数和(自身を除く): 1663964460

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, 72, 76, 80, 90, 95, 96, 114, 120, 144, 152, 160, 171, 180, 190, 228, 240, 285, 288, 304, 342, 360, 361, 380, 456, 480, 570, 608, 684, 720, 722, 760, 855, 912, 1083, 1140, 1229, 1368, 1440, 1444, 1520, 1710, 1805, 1824, 2166, 2280, 2458, 2736, 2888, 3040, 3249, 3420, 3610, 3687, 4332, 4560, 4916, 5415, 5472, 5776, 6145, 6498, 6840, 7220, 7374, 8664, 9120, 9832, 10830, 11061, 11552, 12290, 12996, 13680, 14440, 14748, 16245, 17328, 18435, 19664, 21660, 22122, 23351, 24580, 25992, 27360, 28880, 29496, 32490, 34656, 36870, 39328, 43320, 44244, 46702, 49160, 51984, 55305, 57760, 58992, 64980, 70053, 73740, 86640, 88488, 93404, 98320, 103968, 110610, 116755, 117984, 129960, 140106, 147480, 173280, 176976, 186808, 196640, 210159, 221220, 233510, 259920, 280212, 294960, 350265, 353952, 373616, 420318, 442440, 443669, 467020, 519840, 560424, 589920, 700530, 747232, 840636, 884880, 887338, 934040, 1050795, 1120848, 1331007, 1401060, 1681272, 1769760, 1774676, 1868080, 2101590, 2218345, 2241696, 2662014, 2802120, 3362544, 3549352, 3736160, 3993021, 4203180, 4436690, 5324028, 5604240, 6655035, 6725088, 7098704, 7986042, 8406360, 8873380, 10648056, 11208480, 13310070, 14197408, 15972084, 16812720, 17746760, 19965105, 21296112, 26620140, 31944168, 33625440, 35493520, 39930210, 42592224, 53240280, 63888336, 70987040, 79860420, 106480560, 127776672, 159720840, 212961120, 319441680, 638883360]

約数ペア:

[(1, 638883360), (2, 319441680), (3, 212961120), (4, 159720840), (5, 127776672), (6, 106480560), (8, 79860420), (9, 70987040), (10, 63888336), (12, 53240280), (15, 42592224), (16, 39930210), (18, 35493520), (19, 33625440), (20, 31944168), (24, 26620140), (30, 21296112), (32, 19965105), (36, 17746760), (38, 16812720), (40, 15972084), (45, 14197408), (48, 13310070), (57, 11208480), (60, 10648056), (72, 8873380), (76, 8406360), (80, 7986042), (90, 7098704), (95, 6725088), (96, 6655035), (114, 5604240), (120, 5324028), (144, 4436690), (152, 4203180), (160, 3993021), (171, 3736160), (180, 3549352), (190, 3362544), (228, 2802120), (240, 2662014), (285, 2241696), (288, 2218345), (304, 2101590), (342, 1868080), (360, 1774676), (361, 1769760), (380, 1681272), (456, 1401060), (480, 1331007), (570, 1120848), (608, 1050795), (684, 934040), (720, 887338), (722, 884880), (760, 840636), (855, 747232), (912, 700530), (1083, 589920), (1140, 560424), (1229, 519840), (1368, 467020), (1440, 443669), (1444, 442440), (1520, 420318), (1710, 373616), (1805, 353952), (1824, 350265), (2166, 294960), (2280, 280212), (2458, 259920), (2736, 233510), (2888, 221220), (3040, 210159), (3249, 196640), (3420, 186808), (3610, 176976), (3687, 173280), (4332, 147480), (4560, 140106), (4916, 129960), (5415, 117984), (5472, 116755), (5776, 110610), (6145, 103968), (6498, 98320), (6840, 93404), (7220, 88488), (7374, 86640), (8664, 73740), (9120, 70053), (9832, 64980), (10830, 58992), (11061, 57760), (11552, 55305), (12290, 51984), (12996, 49160), (13680, 46702), (14440, 44244), (14748, 43320), (16245, 39328), (17328, 36870), (18435, 34656), (19664, 32490), (21660, 29496), (22122, 28880), (23351, 27360), (24580, 25992)]