19921180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14029}}^1$

素因数の和:14109

約数の個数: 24

約数和(自身を含む): 42426720

約数和(自身を除く): 22505540

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 14029, 28058, 56116, 70145, 140290, 280580, 996059, 1992118, 3984236, 4980295, 9960590, 19921180]

約数ペア:

[(1, 19921180), (2, 9960590), (4, 4980295), (5, 3984236), (10, 1992118), (20, 996059), (71, 280580), (142, 140290), (284, 70145), (355, 56116), (710, 28058), (1420, 14029)]