8938940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 20248704

約数和(自身を除く): 11309764

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 61, 68, 85, 122, 170, 244, 305, 340, 431, 610, 862, 1037, 1220, 1724, 2074, 2155, 4148, 4310, 5185, 7327, 8620, 10370, 14654, 20740, 26291, 29308, 36635, 52582, 73270, 105164, 131455, 146540, 262910, 446947, 525820, 893894, 1787788, 2234735, 4469470, 8938940]

約数ペア:

[(1, 8938940), (2, 4469470), (4, 2234735), (5, 1787788), (10, 893894), (17, 525820), (20, 446947), (34, 262910), (61, 146540), (68, 131455), (85, 105164), (122, 73270), (170, 52582), (244, 36635), (305, 29308), (340, 26291), (431, 20740), (610, 14654), (862, 10370), (1037, 8620), (1220, 7327), (1724, 5185), (2074, 4310), (2155, 4148)]