201065720

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{22541}}^1$

素因数の和:22775

約数の個数: 32

約数和(自身を含む): 454446720

約数和(自身を除く): 253381000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 8920, 22541, 45082, 90164, 112705, 180328, 225410, 450820, 901640, 5026643, 10053286, 20106572, 25133215, 40213144, 50266430, 100532860, 201065720]

約数ペア:

[(1, 201065720), (2, 100532860), (4, 50266430), (5, 40213144), (8, 25133215), (10, 20106572), (20, 10053286), (40, 5026643), (223, 901640), (446, 450820), (892, 225410), (1115, 180328), (1784, 112705), (2230, 90164), (4460, 45082), (8920, 22541)]