390200680

素因数分解:

$2^3\times 5^1\times {\mathrm{9755017}}^1$

素因数の和:9755028

約数の個数: 16

約数和(自身を含む): 877951620

約数和(自身を除く): 487750940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9755017, 19510034, 39020068, 48775085, 78040136, 97550170, 195100340, 390200680]

約数ペア:

[(1, 390200680), (2, 195100340), (4, 97550170), (5, 78040136), (8, 48775085), (10, 39020068), (20, 19510034), (40, 9755017)]