91042640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{87541}}^1$

素因数の和:87567

約数の個数: 40

約数和(自身を含む): 227959368

約数和(自身を除く): 136916728

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 87541, 175082, 350164, 437705, 700328, 875410, 1138033, 1400656, 1750820, 2276066, 3501640, 4552132, 5690165, 7003280, 9104264, 11380330, 18208528, 22760660, 45521320, 91042640]

約数ペア:

[(1, 91042640), (2, 45521320), (4, 22760660), (5, 18208528), (8, 11380330), (10, 9104264), (13, 7003280), (16, 5690165), (20, 4552132), (26, 3501640), (40, 2276066), (52, 1750820), (65, 1400656), (80, 1138033), (104, 875410), (130, 700328), (208, 437705), (260, 350164), (520, 175082), (1040, 87541)]