20654870

素因数分解:

$2^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{6599}}^1$

素因数の和:6919

約数の個数: 16

約数和(自身を含む): 37303200

約数和(自身を除く): 16648330

約数列:

[1, 2, 5, 10, 313, 626, 1565, 3130, 6599, 13198, 32995, 65990, 2065487, 4130974, 10327435, 20654870]

約数ペア:

[(1, 20654870), (2, 10327435), (5, 4130974), (10, 2065487), (313, 65990), (626, 32995), (1565, 13198), (3130, 6599)]