19289540

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6473}}^1$

素因数の和:6631

約数の個数: 24

約数和(自身を含む): 40786200

約数和(自身を除く): 21496660

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6473, 12946, 25892, 32365, 64730, 129460, 964477, 1928954, 3857908, 4822385, 9644770, 19289540]

約数ペア:

[(1, 19289540), (2, 9644770), (4, 4822385), (5, 3857908), (10, 1928954), (20, 964477), (149, 129460), (298, 64730), (596, 32365), (745, 25892), (1490, 12946), (2980, 6473)]