389907398

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{3719}}^1$

素因数の和:3860

約数の個数: 32

約数和(自身を含む): 642816000

約数和(自身を除く): 252908602

約数列:

[1, 2, 19, 31, 38, 62, 89, 178, 589, 1178, 1691, 2759, 3382, 3719, 5518, 7438, 52421, 70661, 104842, 115289, 141322, 230578, 330991, 661982, 2190491, 4380982, 6288829, 10260721, 12577658, 20521442, 194953699, 389907398]

約数ペア:

[(1, 389907398), (2, 194953699), (19, 20521442), (31, 12577658), (38, 10260721), (62, 6288829), (89, 4380982), (178, 2190491), (589, 661982), (1178, 330991), (1691, 230578), (2759, 141322), (3382, 115289), (3719, 104842), (5518, 70661), (7438, 52421)]