123478138

素因数分解:

$2^1\times 7^2\times {\mathrm{179}}^1\times {\mathrm{7039}}^1$

素因数の和:7234

約数の個数: 24

約数和(自身を含む): 216691200

約数和(自身を除く): 93213062

約数列:

[1, 2, 7, 14, 49, 98, 179, 358, 1253, 2506, 7039, 8771, 14078, 17542, 49273, 98546, 344911, 689822, 1259981, 2519962, 8819867, 17639734, 61739069, 123478138]

約数ペア:

[(1, 123478138), (2, 61739069), (7, 17639734), (14, 8819867), (49, 2519962), (98, 1259981), (179, 689822), (358, 344911), (1253, 98546), (2506, 49273), (7039, 17542), (8771, 14078)]