201355880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1087}}^1$

素因数の和:1530

約数の個数: 64

約数和(自身を含む): 495866880

約数和(自身を除く): 294511000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 421, 440, 842, 1087, 1684, 2105, 2174, 3368, 4210, 4348, 4631, 5435, 8420, 8696, 9262, 10870, 11957, 16840, 18524, 21740, 23155, 23914, 37048, 43480, 46310, 47828, 59785, 92620, 95656, 119570, 185240, 239140, 457627, 478280, 915254, 1830508, 2288135, 3661016, 4576270, 5033897, 9152540, 10067794, 18305080, 20135588, 25169485, 40271176, 50338970, 100677940, 201355880]

約数ペア:

[(1, 201355880), (2, 100677940), (4, 50338970), (5, 40271176), (8, 25169485), (10, 20135588), (11, 18305080), (20, 10067794), (22, 9152540), (40, 5033897), (44, 4576270), (55, 3661016), (88, 2288135), (110, 1830508), (220, 915254), (421, 478280), (440, 457627), (842, 239140), (1087, 185240), (1684, 119570), (2105, 95656), (2174, 92620), (3368, 59785), (4210, 47828), (4348, 46310), (4631, 43480), (5435, 37048), (8420, 23914), (8696, 23155), (9262, 21740), (10870, 18524), (11957, 16840)]