6821520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:720

約数の個数: 80

約数和(自身を含む): 21671232

約数和(自身を除く): 14849712

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 60, 80, 86, 120, 129, 172, 215, 240, 258, 344, 430, 516, 645, 661, 688, 860, 1032, 1290, 1322, 1720, 1983, 2064, 2580, 2644, 3305, 3440, 3966, 5160, 5288, 6610, 7932, 9915, 10320, 10576, 13220, 15864, 19830, 26440, 28423, 31728, 39660, 52880, 56846, 79320, 85269, 113692, 142115, 158640, 170538, 227384, 284230, 341076, 426345, 454768, 568460, 682152, 852690, 1136920, 1364304, 1705380, 2273840, 3410760, 6821520]

約数ペア:

[(1, 6821520), (2, 3410760), (3, 2273840), (4, 1705380), (5, 1364304), (6, 1136920), (8, 852690), (10, 682152), (12, 568460), (15, 454768), (16, 426345), (20, 341076), (24, 284230), (30, 227384), (40, 170538), (43, 158640), (48, 142115), (60, 113692), (80, 85269), (86, 79320), (120, 56846), (129, 52880), (172, 39660), (215, 31728), (240, 28423), (258, 26440), (344, 19830), (430, 15864), (516, 13220), (645, 10576), (661, 10320), (688, 9915), (860, 7932), (1032, 6610), (1290, 5288), (1322, 5160), (1720, 3966), (1983, 3440), (2064, 3305), (2580, 2644)]