71845640

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{13711}}^1$

素因数の和:13853

約数の個数: 32

約数和(自身を含む): 162898560

約数和(自身を除く): 91052920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 13711, 27422, 54844, 68555, 109688, 137110, 274220, 548440, 1796141, 3592282, 7184564, 8980705, 14369128, 17961410, 35922820, 71845640]

約数ペア:

[(1, 71845640), (2, 35922820), (4, 17961410), (5, 14369128), (8, 8980705), (10, 7184564), (20, 3592282), (40, 1796141), (131, 548440), (262, 274220), (524, 137110), (655, 109688), (1048, 68555), (1310, 54844), (2620, 27422), (5240, 13711)]