19031960

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{977}}^1$

素因数の和:1475

約数の個数: 32

約数和(自身を含む): 42953760

約数和(自身を除く): 23921800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 977, 1948, 1954, 2435, 3896, 3908, 4870, 4885, 7816, 9740, 9770, 19480, 19540, 39080, 475799, 951598, 1903196, 2378995, 3806392, 4757990, 9515980, 19031960]

約数ペア:

[(1, 19031960), (2, 9515980), (4, 4757990), (5, 3806392), (8, 2378995), (10, 1903196), (20, 951598), (40, 475799), (487, 39080), (974, 19540), (977, 19480), (1948, 9770), (1954, 9740), (2435, 7816), (3896, 4885), (3908, 4870)]