81973720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{70667}}^1$

素因数の和:70707

約数の個数: 32

約数和(自身を含む): 190803600

約数和(自身を除く): 108829880

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 70667, 141334, 282668, 353335, 565336, 706670, 1413340, 2049343, 2826680, 4098686, 8197372, 10246715, 16394744, 20493430, 40986860, 81973720]

約数ペア:

[(1, 81973720), (2, 40986860), (4, 20493430), (5, 16394744), (8, 10246715), (10, 8197372), (20, 4098686), (29, 2826680), (40, 2049343), (58, 1413340), (116, 706670), (145, 565336), (232, 353335), (290, 282668), (580, 141334), (1160, 70667)]