82021520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{983}}^1$

素因数の和:1152

約数の個数: 80

約数和(自身を含む): 219628800

約数和(自身を除く): 137607280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 149, 280, 298, 560, 596, 745, 983, 1043, 1192, 1490, 1966, 2086, 2384, 2980, 3932, 4172, 4915, 5215, 5960, 6881, 7864, 8344, 9830, 10430, 11920, 13762, 15728, 16688, 19660, 20860, 27524, 34405, 39320, 41720, 55048, 68810, 78640, 83440, 110096, 137620, 146467, 275240, 292934, 550480, 585868, 732335, 1025269, 1171736, 1464670, 2050538, 2343472, 2929340, 4101076, 5126345, 5858680, 8202152, 10252690, 11717360, 16404304, 20505380, 41010760, 82021520]

約数ペア:

[(1, 82021520), (2, 41010760), (4, 20505380), (5, 16404304), (7, 11717360), (8, 10252690), (10, 8202152), (14, 5858680), (16, 5126345), (20, 4101076), (28, 2929340), (35, 2343472), (40, 2050538), (56, 1464670), (70, 1171736), (80, 1025269), (112, 732335), (140, 585868), (149, 550480), (280, 292934), (298, 275240), (560, 146467), (596, 137620), (745, 110096), (983, 83440), (1043, 78640), (1192, 68810), (1490, 55048), (1966, 41720), (2086, 39320), (2384, 34405), (2980, 27524), (3932, 20860), (4172, 19660), (4915, 16688), (5215, 15728), (5960, 13762), (6881, 11920), (7864, 10430), (8344, 9830)]