390680186

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{191}}^1\times {\mathrm{521}}^1$

素因数の和:878

約数の個数: 32

約数和(自身を含む): 639830016

約数和(自身を除く): 249149830

約数列:

[1, 2, 13, 26, 151, 191, 302, 382, 521, 1042, 1963, 2483, 3926, 4966, 6773, 13546, 28841, 57682, 78671, 99511, 157342, 199022, 374933, 749866, 1022723, 1293643, 2045446, 2587286, 15026161, 30052322, 195340093, 390680186]

約数ペア:

[(1, 390680186), (2, 195340093), (13, 30052322), (26, 15026161), (151, 2587286), (191, 2045446), (302, 1293643), (382, 1022723), (521, 749866), (1042, 374933), (1963, 199022), (2483, 157342), (3926, 99511), (4966, 78671), (6773, 57682), (13546, 28841)]