20081080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29531}}^1$

素因数の和:29559

約数の個数: 32

約数和(自身を含む): 47841840

約数和(自身を除く): 27760760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 29531, 59062, 118124, 147655, 236248, 295310, 502027, 590620, 1004054, 1181240, 2008108, 2510135, 4016216, 5020270, 10040540, 20081080]

約数ペア:

[(1, 20081080), (2, 10040540), (4, 5020270), (5, 4016216), (8, 2510135), (10, 2008108), (17, 1181240), (20, 1004054), (34, 590620), (40, 502027), (68, 295310), (85, 236248), (136, 147655), (170, 118124), (340, 59062), (680, 29531)]