123456138

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{15671}}^1$

素因数の和:15790

約数の個数: 32

約数和(自身を含む): 268555392

約数和(自身を除く): 145099254

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 101, 202, 303, 606, 1313, 2626, 3939, 7878, 15671, 31342, 47013, 94026, 203723, 407446, 611169, 1222338, 1582771, 3165542, 4748313, 9496626, 20576023, 41152046, 61728069, 123456138]

約数ペア:

[(1, 123456138), (2, 61728069), (3, 41152046), (6, 20576023), (13, 9496626), (26, 4748313), (39, 3165542), (78, 1582771), (101, 1222338), (202, 611169), (303, 407446), (606, 203723), (1313, 94026), (2626, 47013), (3939, 31342), (7878, 15671)]