64016620

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1\times {\mathrm{269}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 137622240

約数和(自身を除く): 73605620

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 163, 269, 292, 326, 365, 538, 652, 730, 815, 1076, 1345, 1460, 1630, 2690, 3260, 5380, 11899, 19637, 23798, 39274, 43847, 47596, 59495, 78548, 87694, 98185, 118990, 175388, 196370, 219235, 237980, 392740, 438470, 876940, 3200831, 6401662, 12803324, 16004155, 32008310, 64016620]

約数ペア:

[(1, 64016620), (2, 32008310), (4, 16004155), (5, 12803324), (10, 6401662), (20, 3200831), (73, 876940), (146, 438470), (163, 392740), (269, 237980), (292, 219235), (326, 196370), (365, 175388), (538, 118990), (652, 98185), (730, 87694), (815, 78548), (1076, 59495), (1345, 47596), (1460, 43847), (1630, 39274), (2690, 23798), (3260, 19637), (5380, 11899)]