19855660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5309}}^1$

素因数の和:5346

約数の個数: 48

約数和(自身を含む): 48172320

約数和(自身を除く): 28316660

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, 5309, 10618, 21236, 26545, 53090, 58399, 90253, 106180, 116798, 180506, 233596, 291995, 361012, 451265, 583990, 902530, 992783, 1167980, 1805060, 1985566, 3971132, 4963915, 9927830, 19855660]

約数ペア:

[(1, 19855660), (2, 9927830), (4, 4963915), (5, 3971132), (10, 1985566), (11, 1805060), (17, 1167980), (20, 992783), (22, 902530), (34, 583990), (44, 451265), (55, 361012), (68, 291995), (85, 233596), (110, 180506), (170, 116798), (187, 106180), (220, 90253), (340, 58399), (374, 53090), (748, 26545), (935, 21236), (1870, 10618), (3740, 5309)]