8907980

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1423}}^1$

素因数の和:1745

約数の個数: 24

約数和(自身を含む): 18779712

約数和(自身を除く): 9871732

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1423, 1565, 2846, 3130, 5692, 6260, 7115, 14230, 28460, 445399, 890798, 1781596, 2226995, 4453990, 8907980]

約数ペア:

[(1, 8907980), (2, 4453990), (4, 2226995), (5, 1781596), (10, 890798), (20, 445399), (313, 28460), (626, 14230), (1252, 7115), (1423, 6260), (1565, 5692), (2846, 3130)]