261942720

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:323

約数の個数: 224

約数和(自身を含む): 908060160

約数和(自身を除く): 646117440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 139, 151, 156, 160, 192, 195, 208, 240, 260, 278, 302, 312, 320, 390, 416, 417, 453, 480, 520, 556, 604, 624, 695, 755, 780, 832, 834, 906, 960, 1040, 1112, 1208, 1248, 1390, 1510, 1560, 1668, 1807, 1812, 1963, 2080, 2085, 2224, 2265, 2416, 2496, 2780, 3020, 3120, 3336, 3614, 3624, 3926, 4160, 4170, 4448, 4530, 4832, 5421, 5560, 5889, 6040, 6240, 6672, 7228, 7248, 7852, 8340, 8896, 9035, 9060, 9664, 9815, 10842, 11120, 11778, 12080, 12480, 13344, 14456, 14496, 15704, 16680, 18070, 18120, 19630, 20989, 21684, 22240, 23556, 24160, 26688, 27105, 28912, 28992, 29445, 31408, 33360, 36140, 36240, 39260, 41978, 43368, 44480, 47112, 48320, 54210, 57824, 58890, 62816, 62967, 66720, 72280, 72480, 78520, 83956, 86736, 94224, 104945, 108420, 115648, 117780, 125632, 125934, 133440, 144560, 144960, 157040, 167912, 173472, 188448, 209890, 216840, 235560, 251868, 272857, 289120, 314080, 314835, 335824, 346944, 376896, 419780, 433680, 471120, 503736, 545714, 578240, 628160, 629670, 671648, 818571, 839560, 867360, 942240, 1007472, 1091428, 1259340, 1343296, 1364285, 1637142, 1679120, 1734720, 1884480, 2014944, 2182856, 2518680, 2728570, 3274284, 3358240, 4029888, 4092855, 4365712, 5037360, 5457140, 6548568, 6716480, 8185710, 8731424, 10074720, 10914280, 13097136, 16371420, 17462848, 20149440, 21828560, 26194272, 32742840, 43657120, 52388544, 65485680, 87314240, 130971360, 261942720]

約数ペア:

[(1, 261942720), (2, 130971360), (3, 87314240), (4, 65485680), (5, 52388544), (6, 43657120), (8, 32742840), (10, 26194272), (12, 21828560), (13, 20149440), (15, 17462848), (16, 16371420), (20, 13097136), (24, 10914280), (26, 10074720), (30, 8731424), (32, 8185710), (39, 6716480), (40, 6548568), (48, 5457140), (52, 5037360), (60, 4365712), (64, 4092855), (65, 4029888), (78, 3358240), (80, 3274284), (96, 2728570), (104, 2518680), (120, 2182856), (130, 2014944), (139, 1884480), (151, 1734720), (156, 1679120), (160, 1637142), (192, 1364285), (195, 1343296), (208, 1259340), (240, 1091428), (260, 1007472), (278, 942240), (302, 867360), (312, 839560), (320, 818571), (390, 671648), (416, 629670), (417, 628160), (453, 578240), (480, 545714), (520, 503736), (556, 471120), (604, 433680), (624, 419780), (695, 376896), (755, 346944), (780, 335824), (832, 314835), (834, 314080), (906, 289120), (960, 272857), (1040, 251868), (1112, 235560), (1208, 216840), (1248, 209890), (1390, 188448), (1510, 173472), (1560, 167912), (1668, 157040), (1807, 144960), (1812, 144560), (1963, 133440), (2080, 125934), (2085, 125632), (2224, 117780), (2265, 115648), (2416, 108420), (2496, 104945), (2780, 94224), (3020, 86736), (3120, 83956), (3336, 78520), (3614, 72480), (3624, 72280), (3926, 66720), (4160, 62967), (4170, 62816), (4448, 58890), (4530, 57824), (4832, 54210), (5421, 48320), (5560, 47112), (5889, 44480), (6040, 43368), (6240, 41978), (6672, 39260), (7228, 36240), (7248, 36140), (7852, 33360), (8340, 31408), (8896, 29445), (9035, 28992), (9060, 28912), (9664, 27105), (9815, 26688), (10842, 24160), (11120, 23556), (11778, 22240), (12080, 21684), (12480, 20989), (13344, 19630), (14456, 18120), (14496, 18070), (15704, 16680)]