28649240

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{2333}}^1$

素因数の和:2651

約数の個数: 32

約数和(自身を含む): 64698480

約数和(自身を除く): 36049240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2333, 2456, 3070, 4666, 6140, 9332, 11665, 12280, 18664, 23330, 46660, 93320, 716231, 1432462, 2864924, 3581155, 5729848, 7162310, 14324620, 28649240]

約数ペア:

[(1, 28649240), (2, 14324620), (4, 7162310), (5, 5729848), (8, 3581155), (10, 2864924), (20, 1432462), (40, 716231), (307, 93320), (614, 46660), (1228, 23330), (1535, 18664), (2333, 12280), (2456, 11665), (3070, 9332), (4666, 6140)]