20304877360

素因数分解:

$2^4\times 5^1\times {\mathrm{727}}^1\times {\mathrm{349121}}^1$

素因数の和:349861

約数の個数: 40

約数和(自身を含む): 47273911776

約数和(自身を除く): 26969034416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 727, 1454, 2908, 3635, 5816, 7270, 11632, 14540, 29080, 58160, 349121, 698242, 1396484, 1745605, 2792968, 3491210, 5585936, 6982420, 13964840, 27929680, 253810967, 507621934, 1015243868, 1269054835, 2030487736, 2538109670, 4060975472, 5076219340, 10152438680, 20304877360]

約数ペア:

[(1, 20304877360), (2, 10152438680), (4, 5076219340), (5, 4060975472), (8, 2538109670), (10, 2030487736), (16, 1269054835), (20, 1015243868), (40, 507621934), (80, 253810967), (727, 27929680), (1454, 13964840), (2908, 6982420), (3635, 5585936), (5816, 3491210), (7270, 2792968), (11632, 1745605), (14540, 1396484), (29080, 698242), (58160, 349121)]