56689240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19961}}^1$

素因数の和:20043

約数の個数: 32

約数和(自身を含む): 129353760

約数和(自身を除く): 72664520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 19961, 39922, 79844, 99805, 159688, 199610, 399220, 798440, 1417231, 2834462, 5668924, 7086155, 11337848, 14172310, 28344620, 56689240]

約数ペア:

[(1, 56689240), (2, 28344620), (4, 14172310), (5, 11337848), (8, 7086155), (10, 5668924), (20, 2834462), (40, 1417231), (71, 798440), (142, 399220), (284, 199610), (355, 159688), (568, 99805), (710, 79844), (1420, 39922), (2840, 19961)]