201557785

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{1231}}^1$

素因数の和:1489

約数の個数: 32

約数和(自身を含む): 285626880

約数和(自身を除く): 84069095

約数列:

[1, 5, 11, 13, 55, 65, 143, 229, 715, 1145, 1231, 2519, 2977, 6155, 12595, 13541, 14885, 16003, 32747, 67705, 80015, 163735, 176033, 281899, 880165, 1409495, 3100889, 3664687, 15504445, 18323435, 40311557, 201557785]

約数ペア:

[(1, 201557785), (5, 40311557), (11, 18323435), (13, 15504445), (55, 3664687), (65, 3100889), (143, 1409495), (229, 880165), (715, 281899), (1145, 176033), (1231, 163735), (2519, 80015), (2977, 67705), (6155, 32747), (12595, 16003), (13541, 14885)]