1399689740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1\times {\mathrm{2287}}^1$

素因数の和:2798

約数の個数: 48

約数和(自身を含む): 2988969984

約数和(自身を除く): 1589280244

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 431, 710, 862, 1420, 1724, 2155, 2287, 4310, 4574, 8620, 9148, 11435, 22870, 30601, 45740, 61202, 122404, 153005, 162377, 306010, 324754, 612020, 649508, 811885, 985697, 1623770, 1971394, 3247540, 3942788, 4928485, 9856970, 19713940, 69984487, 139968974, 279937948, 349922435, 699844870, 1399689740]

約数ペア:

[(1, 1399689740), (2, 699844870), (4, 349922435), (5, 279937948), (10, 139968974), (20, 69984487), (71, 19713940), (142, 9856970), (284, 4928485), (355, 3942788), (431, 3247540), (710, 1971394), (862, 1623770), (1420, 985697), (1724, 811885), (2155, 649508), (2287, 612020), (4310, 324754), (4574, 306010), (8620, 162377), (9148, 153005), (11435, 122404), (22870, 61202), (30601, 45740)]