20526220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7177}}^1$

素因数の和:7210

約数の個数: 48

約数和(自身を含む): 50647968

約数和(自身を除く): 30121748

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 7177, 14354, 28708, 35885, 71770, 78947, 93301, 143540, 157894, 186602, 315788, 373204, 394735, 466505, 789470, 933010, 1026311, 1578940, 1866020, 2052622, 4105244, 5131555, 10263110, 20526220]

約数ペア:

[(1, 20526220), (2, 10263110), (4, 5131555), (5, 4105244), (10, 2052622), (11, 1866020), (13, 1578940), (20, 1026311), (22, 933010), (26, 789470), (44, 466505), (52, 394735), (55, 373204), (65, 315788), (110, 186602), (130, 157894), (143, 143540), (220, 93301), (260, 78947), (286, 71770), (572, 35885), (715, 28708), (1430, 14354), (2860, 7177)]