620940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 1774080

約数和(自身を除く): 1153140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 131, 158, 237, 262, 316, 393, 395, 474, 524, 655, 786, 790, 948, 1185, 1310, 1572, 1580, 1965, 2370, 2620, 3930, 4740, 7860, 10349, 20698, 31047, 41396, 51745, 62094, 103490, 124188, 155235, 206980, 310470, 620940]

約数ペア:

[(1, 620940), (2, 310470), (3, 206980), (4, 155235), (5, 124188), (6, 103490), (10, 62094), (12, 51745), (15, 41396), (20, 31047), (30, 20698), (60, 10349), (79, 7860), (131, 4740), (158, 3930), (237, 2620), (262, 2370), (316, 1965), (393, 1580), (395, 1572), (474, 1310), (524, 1185), (655, 948), (786, 790)]