31076720

素因数分解:

$2^4\times 5^1\times {\mathrm{388459}}^1$

素因数の和:388472

約数の個数: 20

約数和(自身を含む): 72253560

約数和(自身を除く): 41176840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 388459, 776918, 1553836, 1942295, 3107672, 3884590, 6215344, 7769180, 15538360, 31076720]

約数ペア:

[(1, 31076720), (2, 15538360), (4, 7769180), (5, 6215344), (8, 3884590), (10, 3107672), (16, 1942295), (20, 1553836), (40, 776918), (80, 388459)]