64531760

素因数分解:

$2^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{2437}}^1$

素因数の和:2781

約数の個数: 40

約数和(自身を含む): 150551376

約数和(自身を除く): 86019616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 331, 662, 1324, 1655, 2437, 2648, 3310, 4874, 5296, 6620, 9748, 12185, 13240, 19496, 24370, 26480, 38992, 48740, 97480, 194960, 806647, 1613294, 3226588, 4033235, 6453176, 8066470, 12906352, 16132940, 32265880, 64531760]

約数ペア:

[(1, 64531760), (2, 32265880), (4, 16132940), (5, 12906352), (8, 8066470), (10, 6453176), (16, 4033235), (20, 3226588), (40, 1613294), (80, 806647), (331, 194960), (662, 97480), (1324, 48740), (1655, 38992), (2437, 26480), (2648, 24370), (3310, 19496), (4874, 13240), (5296, 12185), (6620, 9748)]