18926960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18199}}^1$

素因数の和:18225

約数の個数: 40

約数和(自身を含む): 47392800

約数和(自身を除く): 28465840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18199, 36398, 72796, 90995, 145592, 181990, 236587, 291184, 363980, 473174, 727960, 946348, 1182935, 1455920, 1892696, 2365870, 3785392, 4731740, 9463480, 18926960]

約数ペア:

[(1, 18926960), (2, 9463480), (4, 4731740), (5, 3785392), (8, 2365870), (10, 1892696), (13, 1455920), (16, 1182935), (20, 946348), (26, 727960), (40, 473174), (52, 363980), (65, 291184), (80, 236587), (104, 181990), (130, 145592), (208, 90995), (260, 72796), (520, 36398), (1040, 18199)]