20257128

素因数分解:

$2^3\times 3^4\times {\mathrm{43}}^1\times {\mathrm{727}}^1$

素因数の和:788

約数の個数: 80

約数和(自身を含む): 58138080

約数和(自身を除く): 37880952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 43, 54, 72, 81, 86, 108, 129, 162, 172, 216, 258, 324, 344, 387, 516, 648, 727, 774, 1032, 1161, 1454, 1548, 2181, 2322, 2908, 3096, 3483, 4362, 4644, 5816, 6543, 6966, 8724, 9288, 13086, 13932, 17448, 19629, 26172, 27864, 31261, 39258, 52344, 58887, 62522, 78516, 93783, 117774, 125044, 157032, 187566, 235548, 250088, 281349, 375132, 471096, 562698, 750264, 844047, 1125396, 1688094, 2250792, 2532141, 3376188, 5064282, 6752376, 10128564, 20257128]

約数ペア:

[(1, 20257128), (2, 10128564), (3, 6752376), (4, 5064282), (6, 3376188), (8, 2532141), (9, 2250792), (12, 1688094), (18, 1125396), (24, 844047), (27, 750264), (36, 562698), (43, 471096), (54, 375132), (72, 281349), (81, 250088), (86, 235548), (108, 187566), (129, 157032), (162, 125044), (172, 117774), (216, 93783), (258, 78516), (324, 62522), (344, 58887), (387, 52344), (516, 39258), (648, 31261), (727, 27864), (774, 26172), (1032, 19629), (1161, 17448), (1454, 13932), (1548, 13086), (2181, 9288), (2322, 8724), (2908, 6966), (3096, 6543), (3483, 5816), (4362, 4644)]