20179945360

素因数分解:

$2^4\times 5^1\times {\mathrm{1381}}^1\times {\mathrm{182657}}^1$

素因数の和:184051

約数の個数: 40

約数和(自身を含む): 46952604216

約数和(自身を除く): 26772658856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1381, 2762, 5524, 6905, 11048, 13810, 22096, 27620, 55240, 110480, 182657, 365314, 730628, 913285, 1461256, 1826570, 2922512, 3653140, 7306280, 14612560, 252249317, 504498634, 1008997268, 1261246585, 2017994536, 2522493170, 4035989072, 5044986340, 10089972680, 20179945360]

約数ペア:

[(1, 20179945360), (2, 10089972680), (4, 5044986340), (5, 4035989072), (8, 2522493170), (10, 2017994536), (16, 1261246585), (20, 1008997268), (40, 504498634), (80, 252249317), (1381, 14612560), (2762, 7306280), (5524, 3653140), (6905, 2922512), (11048, 1826570), (13810, 1461256), (22096, 913285), (27620, 730628), (55240, 365314), (110480, 182657)]