9990440

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{659}}^1$

素因数の和:1049

約数の個数: 32

約数和(自身を含む): 22572000

約数和(自身を除く): 12581560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 659, 758, 1318, 1516, 1895, 2636, 3032, 3295, 3790, 5272, 6590, 7580, 13180, 15160, 26360, 249761, 499522, 999044, 1248805, 1998088, 2497610, 4995220, 9990440]

約数ペア:

[(1, 9990440), (2, 4995220), (4, 2497610), (5, 1998088), (8, 1248805), (10, 999044), (20, 499522), (40, 249761), (379, 26360), (659, 15160), (758, 13180), (1318, 7580), (1516, 6590), (1895, 5272), (2636, 3790), (3032, 3295)]