8660780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 19165440

約数和(自身を除く): 10504660

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 229, 244, 305, 310, 458, 610, 620, 916, 1145, 1220, 1891, 2290, 3782, 4580, 7099, 7564, 9455, 13969, 14198, 18910, 27938, 28396, 35495, 37820, 55876, 69845, 70990, 139690, 141980, 279380, 433039, 866078, 1732156, 2165195, 4330390, 8660780]

約数ペア:

[(1, 8660780), (2, 4330390), (4, 2165195), (5, 1732156), (10, 866078), (20, 433039), (31, 279380), (61, 141980), (62, 139690), (122, 70990), (124, 69845), (155, 55876), (229, 37820), (244, 35495), (305, 28396), (310, 27938), (458, 18910), (610, 14198), (620, 13969), (916, 9455), (1145, 7564), (1220, 7099), (1891, 4580), (2290, 3782)]