19454980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{31379}}^1$

素因数の和:31419

約数の個数: 24

約数和(自身を含む): 42174720

約数和(自身を除く): 22719740

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 31379, 62758, 125516, 156895, 313790, 627580, 972749, 1945498, 3890996, 4863745, 9727490, 19454980]

約数ペア:

[(1, 19454980), (2, 9727490), (4, 4863745), (5, 3890996), (10, 1945498), (20, 972749), (31, 627580), (62, 313790), (124, 156895), (155, 125516), (310, 62758), (620, 31379)]