31691036120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{18425021}}^1$

素因数の和:18425075

約数の個数: 32

約数和(自身を含む): 72963087120

約数和(自身を除く): 41272051000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 18425021, 36850042, 73700084, 92125105, 147400168, 184250210, 368500420, 737000840, 792275903, 1584551806, 3169103612, 3961379515, 6338207224, 7922759030, 15845518060, 31691036120]

約数ペア:

[(1, 31691036120), (2, 15845518060), (4, 7922759030), (5, 6338207224), (8, 3961379515), (10, 3169103612), (20, 1584551806), (40, 792275903), (43, 737000840), (86, 368500420), (172, 184250210), (215, 147400168), (344, 92125105), (430, 73700084), (860, 36850042), (1720, 18425021)]