1987180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7643}}^1$

素因数の和:7665

約数の個数: 24

約数和(自身を含む): 4494672

約数和(自身を除く): 2507492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 7643, 15286, 30572, 38215, 76430, 99359, 152860, 198718, 397436, 496795, 993590, 1987180]

約数ペア:

[(1, 1987180), (2, 993590), (4, 496795), (5, 397436), (10, 198718), (13, 152860), (20, 99359), (26, 76430), (52, 38215), (65, 30572), (130, 15286), (260, 7643)]