64169360

素因数分解:

$2^4\times 5^1\times {\mathrm{821}}^1\times {\mathrm{977}}^1$

素因数の和:1811

約数の個数: 40

約数和(自身を含む): 149528376

約数和(自身を除く): 85359016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 821, 977, 1642, 1954, 3284, 3908, 4105, 4885, 6568, 7816, 8210, 9770, 13136, 15632, 16420, 19540, 32840, 39080, 65680, 78160, 802117, 1604234, 3208468, 4010585, 6416936, 8021170, 12833872, 16042340, 32084680, 64169360]

約数ペア:

[(1, 64169360), (2, 32084680), (4, 16042340), (5, 12833872), (8, 8021170), (10, 6416936), (16, 4010585), (20, 3208468), (40, 1604234), (80, 802117), (821, 78160), (977, 65680), (1642, 39080), (1954, 32840), (3284, 19540), (3908, 16420), (4105, 15632), (4885, 13136), (6568, 9770), (7816, 8210)]