20149440

素因数分解:

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

素因数の和:310

約数の個数: 112

約数和(自身を含む): 64861440

約数和(自身を除く): 44712000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 139, 151, 160, 192, 240, 278, 302, 320, 417, 453, 480, 556, 604, 695, 755, 834, 906, 960, 1112, 1208, 1390, 1510, 1668, 1812, 2085, 2224, 2265, 2416, 2780, 3020, 3336, 3624, 4170, 4448, 4530, 4832, 5560, 6040, 6672, 7248, 8340, 8896, 9060, 9664, 11120, 12080, 13344, 14496, 16680, 18120, 20989, 22240, 24160, 26688, 28992, 33360, 36240, 41978, 44480, 48320, 62967, 66720, 72480, 83956, 104945, 125934, 133440, 144960, 167912, 209890, 251868, 314835, 335824, 419780, 503736, 629670, 671648, 839560, 1007472, 1259340, 1343296, 1679120, 2014944, 2518680, 3358240, 4029888, 5037360, 6716480, 10074720, 20149440]

約数ペア:

[(1, 20149440), (2, 10074720), (3, 6716480), (4, 5037360), (5, 4029888), (6, 3358240), (8, 2518680), (10, 2014944), (12, 1679120), (15, 1343296), (16, 1259340), (20, 1007472), (24, 839560), (30, 671648), (32, 629670), (40, 503736), (48, 419780), (60, 335824), (64, 314835), (80, 251868), (96, 209890), (120, 167912), (139, 144960), (151, 133440), (160, 125934), (192, 104945), (240, 83956), (278, 72480), (302, 66720), (320, 62967), (417, 48320), (453, 44480), (480, 41978), (556, 36240), (604, 33360), (695, 28992), (755, 26688), (834, 24160), (906, 22240), (960, 20989), (1112, 18120), (1208, 16680), (1390, 14496), (1510, 13344), (1668, 12080), (1812, 11120), (2085, 9664), (2224, 9060), (2265, 8896), (2416, 8340), (2780, 7248), (3020, 6672), (3336, 6040), (3624, 5560), (4170, 4832), (4448, 4530)]