217790

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{751}}^1$

素因数の和:787

約数の個数: 16

約数和(自身を含む): 406080

約数和(自身を除く): 188290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 751, 1502, 3755, 7510, 21779, 43558, 108895, 217790]

約数ペア:

[(1, 217790), (2, 108895), (5, 43558), (10, 21779), (29, 7510), (58, 3755), (145, 1502), (290, 751)]