8909440

素因数分解:

$2^7\times 5^1\times {\mathrm{13921}}^1$

素因数の和:13940

約数の個数: 32

約数和(自身を含む): 21300660

約数和(自身を除く): 12391220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 13921, 27842, 55684, 69605, 111368, 139210, 222736, 278420, 445472, 556840, 890944, 1113680, 1781888, 2227360, 4454720, 8909440]

約数ペア:

[(1, 8909440), (2, 4454720), (4, 2227360), (5, 1781888), (8, 1113680), (10, 890944), (16, 556840), (20, 445472), (32, 278420), (40, 222736), (64, 139210), (80, 111368), (128, 69605), (160, 55684), (320, 27842), (640, 13921)]