19889360

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8573}}^1$

素因数の和:8615

約数の個数: 40

約数和(自身を含む): 47842920

約数和(自身を除く): 27953560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 8573, 17146, 34292, 42865, 68584, 85730, 137168, 171460, 248617, 342920, 497234, 685840, 994468, 1243085, 1988936, 2486170, 3977872, 4972340, 9944680, 19889360]

約数ペア:

[(1, 19889360), (2, 9944680), (4, 4972340), (5, 3977872), (8, 2486170), (10, 1988936), (16, 1243085), (20, 994468), (29, 685840), (40, 497234), (58, 342920), (80, 248617), (116, 171460), (145, 137168), (232, 85730), (290, 68584), (464, 42865), (580, 34292), (1160, 17146), (2320, 8573)]