31959940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^2\times {\mathrm{317}}^1$

素因数の和:468

約数の個数: 36

約数和(自身を含む): 68289228

約数和(自身を除く): 36329288

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 317, 355, 634, 710, 1268, 1420, 1585, 3170, 5041, 6340, 10082, 20164, 22507, 25205, 45014, 50410, 90028, 100820, 112535, 225070, 450140, 1597997, 3195994, 6391988, 7989985, 15979970, 31959940]

約数ペア:

[(1, 31959940), (2, 15979970), (4, 7989985), (5, 6391988), (10, 3195994), (20, 1597997), (71, 450140), (142, 225070), (284, 112535), (317, 100820), (355, 90028), (634, 50410), (710, 45014), (1268, 25205), (1420, 22507), (1585, 20164), (3170, 10082), (5041, 6340)]