12764560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5147}}^1$

素因数の和:5191

約数の個数: 40

約数和(自身を含む): 30640896

約数和(自身を除く): 17876336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 5147, 10294, 20588, 25735, 41176, 51470, 82352, 102940, 159557, 205880, 319114, 411760, 638228, 797785, 1276456, 1595570, 2552912, 3191140, 6382280, 12764560]

約数ペア:

[(1, 12764560), (2, 6382280), (4, 3191140), (5, 2552912), (8, 1595570), (10, 1276456), (16, 797785), (20, 638228), (31, 411760), (40, 319114), (62, 205880), (80, 159557), (124, 102940), (155, 82352), (248, 51470), (310, 41176), (496, 25735), (620, 20588), (1240, 10294), (2480, 5147)]