64940620

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{10243}}^1$

素因数の和:10569

約数の個数: 24

約数和(自身を含む): 136818864

約数和(自身を除く): 71878244

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 1268, 1585, 3170, 6340, 10243, 20486, 40972, 51215, 102430, 204860, 3247031, 6494062, 12988124, 16235155, 32470310, 64940620]

約数ペア:

[(1, 64940620), (2, 32470310), (4, 16235155), (5, 12988124), (10, 6494062), (20, 3247031), (317, 204860), (634, 102430), (1268, 51215), (1585, 40972), (3170, 20486), (6340, 10243)]