12885080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:444

約数の個数: 64

約数和(自身を含む): 31752000

約数和(自身を除く): 18866920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 260, 284, 349, 355, 520, 568, 698, 710, 923, 1396, 1420, 1745, 1846, 2792, 2840, 3490, 3692, 4537, 4615, 6980, 7384, 9074, 9230, 13960, 18148, 18460, 22685, 24779, 36296, 36920, 45370, 49558, 90740, 99116, 123895, 181480, 198232, 247790, 322127, 495580, 644254, 991160, 1288508, 1610635, 2577016, 3221270, 6442540, 12885080]

約数ペア:

[(1, 12885080), (2, 6442540), (4, 3221270), (5, 2577016), (8, 1610635), (10, 1288508), (13, 991160), (20, 644254), (26, 495580), (40, 322127), (52, 247790), (65, 198232), (71, 181480), (104, 123895), (130, 99116), (142, 90740), (260, 49558), (284, 45370), (349, 36920), (355, 36296), (520, 24779), (568, 22685), (698, 18460), (710, 18148), (923, 13960), (1396, 9230), (1420, 9074), (1745, 7384), (1846, 6980), (2792, 4615), (2840, 4537), (3490, 3692)]