19703840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9473}}^1$

素因数の和:9501

約数の個数: 48

約数和(自身を含む): 50136408

約数和(自身を除く): 30432568

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9473, 18946, 37892, 47365, 75784, 94730, 123149, 151568, 189460, 246298, 303136, 378920, 492596, 615745, 757840, 985192, 1231490, 1515680, 1970384, 2462980, 3940768, 4925960, 9851920, 19703840]

約数ペア:

[(1, 19703840), (2, 9851920), (4, 4925960), (5, 3940768), (8, 2462980), (10, 1970384), (13, 1515680), (16, 1231490), (20, 985192), (26, 757840), (32, 615745), (40, 492596), (52, 378920), (65, 303136), (80, 246298), (104, 189460), (130, 151568), (160, 123149), (208, 94730), (260, 75784), (416, 47365), (520, 37892), (1040, 18946), (2080, 9473)]