890752880

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{271571}}^1$

素因数の和:271625

約数の個数: 40

約数和(自身を含む): 2121520464

約数和(自身を除く): 1230767584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 271571, 543142, 1086284, 1357855, 2172568, 2715710, 4345136, 5431420, 10862840, 11134411, 21725680, 22268822, 44537644, 55672055, 89075288, 111344110, 178150576, 222688220, 445376440, 890752880]

約数ペア:

[(1, 890752880), (2, 445376440), (4, 222688220), (5, 178150576), (8, 111344110), (10, 89075288), (16, 55672055), (20, 44537644), (40, 22268822), (41, 21725680), (80, 11134411), (82, 10862840), (164, 5431420), (205, 4345136), (328, 2715710), (410, 2172568), (656, 1357855), (820, 1086284), (1640, 543142), (3280, 271571)]