165117640

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{31511}}^1$

素因数の和:31653

約数の個数: 32

約数和(自身を含む): 374362560

約数和(自身を除く): 209244920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 31511, 63022, 126044, 157555, 252088, 315110, 630220, 1260440, 4127941, 8255882, 16511764, 20639705, 33023528, 41279410, 82558820, 165117640]

約数ペア:

[(1, 165117640), (2, 82558820), (4, 41279410), (5, 33023528), (8, 20639705), (10, 16511764), (20, 8255882), (40, 4127941), (131, 1260440), (262, 630220), (524, 315110), (655, 252088), (1048, 157555), (1310, 126044), (2620, 63022), (5240, 31511)]