397867678

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{269}}^1\times {\mathrm{349}}^1$

素因数の和:796

約数の個数: 32

約数和(自身を含む): 650916000

約数和(自身を除く): 253048322

約数列:

[1, 2, 13, 26, 163, 269, 326, 349, 538, 698, 2119, 3497, 4238, 4537, 6994, 9074, 43847, 56887, 87694, 93881, 113774, 187762, 570011, 739531, 1140022, 1220453, 1479062, 2440906, 15302603, 30605206, 198933839, 397867678]

約数ペア:

[(1, 397867678), (2, 198933839), (13, 30605206), (26, 15302603), (163, 2440906), (269, 1479062), (326, 1220453), (349, 1140022), (538, 739531), (698, 570011), (2119, 187762), (3497, 113774), (4238, 93881), (4537, 87694), (6994, 56887), (9074, 43847)]