501980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1321}}^1$

素因数の和:1349

約数の個数: 24

約数和(自身を含む): 1110480

約数和(自身を除く): 608500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1321, 2642, 5284, 6605, 13210, 25099, 26420, 50198, 100396, 125495, 250990, 501980]

約数ペア:

[(1, 501980), (2, 250990), (4, 125495), (5, 100396), (10, 50198), (19, 26420), (20, 25099), (38, 13210), (76, 6605), (95, 5284), (190, 2642), (380, 1321)]