20437240

素因数分解:

$2^3\times 5^1\times {\mathrm{510931}}^1$

素因数の和:510942

約数の個数: 16

約数和(自身を含む): 45983880

約数和(自身を除く): 25546640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 510931, 1021862, 2043724, 2554655, 4087448, 5109310, 10218620, 20437240]

約数ペア:

[(1, 20437240), (2, 10218620), (4, 5109310), (5, 4087448), (8, 2554655), (10, 2043724), (20, 1021862), (40, 510931)]