31070320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20441}}^1$

素因数の和:20473

約数の個数: 40

約数和(自身を含む): 76044240

約数和(自身を除く): 44973920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 20441, 40882, 81764, 102205, 163528, 204410, 327056, 388379, 408820, 776758, 817640, 1553516, 1635280, 1941895, 3107032, 3883790, 6214064, 7767580, 15535160, 31070320]

約数ペア:

[(1, 31070320), (2, 15535160), (4, 7767580), (5, 6214064), (8, 3883790), (10, 3107032), (16, 1941895), (19, 1635280), (20, 1553516), (38, 817640), (40, 776758), (76, 408820), (80, 388379), (95, 327056), (152, 204410), (190, 163528), (304, 102205), (380, 81764), (760, 40882), (1520, 20441)]