859636840

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{70003}}^1$

素因数の和:70321

約数の個数: 32

約数和(自身を含む): 1940510880

約数和(自身を除く): 1080874040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 6140, 12280, 70003, 140006, 280012, 350015, 560024, 700030, 1400060, 2800120, 21490921, 42981842, 85963684, 107454605, 171927368, 214909210, 429818420, 859636840]

約数ペア:

[(1, 859636840), (2, 429818420), (4, 214909210), (5, 171927368), (8, 107454605), (10, 85963684), (20, 42981842), (40, 21490921), (307, 2800120), (614, 1400060), (1228, 700030), (1535, 560024), (2456, 350015), (3070, 280012), (6140, 140006), (12280, 70003)]