80681960

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{19583}}^1$

素因数の和:19697

約数の個数: 32

約数和(自身を含む): 183306240

約数和(自身を除く): 102624280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 19583, 39166, 78332, 97915, 156664, 195830, 391660, 783320, 2017049, 4034098, 8068196, 10085245, 16136392, 20170490, 40340980, 80681960]

約数ペア:

[(1, 80681960), (2, 40340980), (4, 20170490), (5, 16136392), (8, 10085245), (10, 8068196), (20, 4034098), (40, 2017049), (103, 783320), (206, 391660), (412, 195830), (515, 156664), (824, 97915), (1030, 78332), (2060, 39166), (4120, 19583)]