15621980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4177}}^1$

素因数の和:4214

約数の個数: 48

約数和(自身を含む): 37902816

約数和(自身を除く): 22280836

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 4177, 8354, 16708, 20885, 41770, 45947, 71009, 83540, 91894, 142018, 183788, 229735, 284036, 355045, 459470, 710090, 781099, 918940, 1420180, 1562198, 3124396, 3905495, 7810990, 15621980]

約数ペア:

[(1, 15621980), (2, 7810990), (4, 3905495), (5, 3124396), (10, 1562198), (11, 1420180), (17, 918940), (20, 781099), (22, 710090), (34, 459470), (44, 355045), (55, 284036), (68, 229735), (85, 183788), (110, 142018), (170, 91894), (187, 83540), (220, 71009), (340, 45947), (374, 41770), (748, 20885), (935, 16708), (1870, 8354), (3740, 4177)]