220478271

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{1291}}^1$

素因数の和:1487

約数の個数: 32

約数和(自身を含む): 329925120

約数和(自身を除く): 109446849

約数列:

[1, 3, 13, 29, 39, 87, 151, 377, 453, 1131, 1291, 1963, 3873, 4379, 5889, 13137, 16783, 37439, 50349, 56927, 112317, 170781, 194941, 486707, 584823, 1460121, 2534233, 5653289, 7602699, 16959867, 73492757, 220478271]

約数ペア:

[(1, 220478271), (3, 73492757), (13, 16959867), (29, 7602699), (39, 5653289), (87, 2534233), (151, 1460121), (377, 584823), (453, 486707), (1131, 194941), (1291, 170781), (1963, 112317), (3873, 56927), (4379, 50349), (5889, 37439), (13137, 16783)]