71899640

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{15907}}^1$

素因数の和:16031

約数の個数: 32

約数和(自身を含む): 163216080

約数和(自身を除く): 91316440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 15907, 31814, 63628, 79535, 127256, 159070, 318140, 636280, 1797491, 3594982, 7189964, 8987455, 14379928, 17974910, 35949820, 71899640]

約数ペア:

[(1, 71899640), (2, 35949820), (4, 17974910), (5, 14379928), (8, 8987455), (10, 7189964), (20, 3594982), (40, 1797491), (113, 636280), (226, 318140), (452, 159070), (565, 127256), (904, 79535), (1130, 63628), (2260, 31814), (4520, 15907)]