138533360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{247381}}^1$

素因数の和:247401

約数の個数: 40

約数和(自身を含む): 368104416

約数和(自身を除く): 229571056

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 247381, 494762, 989524, 1236905, 1731667, 1979048, 2473810, 3463334, 3958096, 4947620, 6926668, 8658335, 9895240, 13853336, 17316670, 19790480, 27706672, 34633340, 69266680, 138533360]

約数ペア:

[(1, 138533360), (2, 69266680), (4, 34633340), (5, 27706672), (7, 19790480), (8, 17316670), (10, 13853336), (14, 9895240), (16, 8658335), (20, 6926668), (28, 4947620), (35, 3958096), (40, 3463334), (56, 2473810), (70, 1979048), (80, 1731667), (112, 1236905), (140, 989524), (280, 494762), (560, 247381)]