20169952220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{268861}}^1$

素因数の和:268923

約数の個数: 72

約数和(自身を含む): 48059620224

約数和(自身を除く): 27889668004

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 121, 124, 155, 220, 242, 310, 341, 484, 605, 620, 682, 1210, 1364, 1705, 2420, 3410, 3751, 6820, 7502, 15004, 18755, 37510, 75020, 268861, 537722, 1075444, 1344305, 2688610, 2957471, 5377220, 5914942, 8334691, 11829884, 14787355, 16669382, 29574710, 32532181, 33338764, 41673455, 59149420, 65064362, 83346910, 91681601, 130128724, 162660905, 166693820, 183363202, 325321810, 366726404, 458408005, 650643620, 916816010, 1008497611, 1833632020, 2016995222, 4033990444, 5042488055, 10084976110, 20169952220]

約数ペア:

[(1, 20169952220), (2, 10084976110), (4, 5042488055), (5, 4033990444), (10, 2016995222), (11, 1833632020), (20, 1008497611), (22, 916816010), (31, 650643620), (44, 458408005), (55, 366726404), (62, 325321810), (110, 183363202), (121, 166693820), (124, 162660905), (155, 130128724), (220, 91681601), (242, 83346910), (310, 65064362), (341, 59149420), (484, 41673455), (605, 33338764), (620, 32532181), (682, 29574710), (1210, 16669382), (1364, 14787355), (1705, 11829884), (2420, 8334691), (3410, 5914942), (3751, 5377220), (6820, 2957471), (7502, 2688610), (15004, 1344305), (18755, 1075444), (37510, 537722), (75020, 268861)]