64291940

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1\times {\mathrm{307}}^1$

素因数の和:636

約数の個数: 48

約数和(自身を含む): 139605312

約数和(自身を除く): 75313372

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 283, 307, 370, 566, 614, 740, 1132, 1228, 1415, 1535, 2830, 3070, 5660, 6140, 10471, 11359, 20942, 22718, 41884, 45436, 52355, 56795, 86881, 104710, 113590, 173762, 209420, 227180, 347524, 434405, 868810, 1737620, 3214597, 6429194, 12858388, 16072985, 32145970, 64291940]

約数ペア:

[(1, 64291940), (2, 32145970), (4, 16072985), (5, 12858388), (10, 6429194), (20, 3214597), (37, 1737620), (74, 868810), (148, 434405), (185, 347524), (283, 227180), (307, 209420), (370, 173762), (566, 113590), (614, 104710), (740, 86881), (1132, 56795), (1228, 52355), (1415, 45436), (1535, 41884), (2830, 22718), (3070, 20942), (5660, 11359), (6140, 10471)]