388037858

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{28001}}^1$

素因数の和:28070

約数の個数: 24

約数和(自身を含む): 645670116

約数和(自身を除く): 257632258

約数列:

[1, 2, 13, 26, 41, 82, 169, 338, 533, 1066, 6929, 13858, 28001, 56002, 364013, 728026, 1148041, 2296082, 4732169, 9464338, 14924533, 29849066, 194018929, 388037858]

約数ペア:

[(1, 388037858), (2, 194018929), (13, 29849066), (26, 14924533), (41, 9464338), (82, 4732169), (169, 2296082), (338, 1148041), (533, 728026), (1066, 364013), (6929, 56002), (13858, 28001)]