78701990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{414221}}^1$

素因数の和:414247

約数の個数: 16

約数和(自身を含む): 149119920

約数和(自身を除く): 70417930

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 414221, 828442, 2071105, 4142210, 7870199, 15740398, 39350995, 78701990]

約数ペア:

[(1, 78701990), (2, 39350995), (5, 15740398), (10, 7870199), (19, 4142210), (38, 2071105), (95, 828442), (190, 414221)]