22508420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 53089344

約数和(自身を除く): 30580924

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 121, 131, 142, 220, 242, 262, 284, 355, 484, 524, 605, 655, 710, 781, 1210, 1310, 1420, 1441, 1562, 2420, 2620, 2882, 3124, 3905, 5764, 7205, 7810, 8591, 9301, 14410, 15620, 15851, 17182, 18602, 28820, 31702, 34364, 37204, 42955, 46505, 63404, 79255, 85910, 93010, 102311, 158510, 171820, 186020, 204622, 317020, 409244, 511555, 1023110, 1125421, 2046220, 2250842, 4501684, 5627105, 11254210, 22508420]

約数ペア:

[(1, 22508420), (2, 11254210), (4, 5627105), (5, 4501684), (10, 2250842), (11, 2046220), (20, 1125421), (22, 1023110), (44, 511555), (55, 409244), (71, 317020), (110, 204622), (121, 186020), (131, 171820), (142, 158510), (220, 102311), (242, 93010), (262, 85910), (284, 79255), (355, 63404), (484, 46505), (524, 42955), (605, 37204), (655, 34364), (710, 31702), (781, 28820), (1210, 18602), (1310, 17182), (1420, 15851), (1441, 15620), (1562, 14410), (2420, 9301), (2620, 8591), (2882, 7810), (3124, 7205), (3905, 5764)]