197533720

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{55487}}^1$

素因数の和:55587

約数の個数: 32

約数和(自身を含む): 449452800

約数和(自身を除く): 251919080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 55487, 110974, 221948, 277435, 443896, 554870, 1109740, 2219480, 4938343, 9876686, 19753372, 24691715, 39506744, 49383430, 98766860, 197533720]

約数ペア:

[(1, 197533720), (2, 98766860), (4, 49383430), (5, 39506744), (8, 24691715), (10, 19753372), (20, 9876686), (40, 4938343), (89, 2219480), (178, 1109740), (356, 554870), (445, 443896), (712, 277435), (890, 221948), (1780, 110974), (3560, 55487)]