201800980

素因数分解:

$2^2\times 5^1\times {\mathrm{769}}^1\times {\mathrm{13121}}^1$

素因数の和:13899

約数の個数: 24

約数和(自身を含む): 424365480

約数和(自身を除く): 222564500

約数列:

[1, 2, 4, 5, 10, 20, 769, 1538, 3076, 3845, 7690, 13121, 15380, 26242, 52484, 65605, 131210, 262420, 10090049, 20180098, 40360196, 50450245, 100900490, 201800980]

約数ペア:

[(1, 201800980), (2, 100900490), (4, 50450245), (5, 40360196), (10, 20180098), (20, 10090049), (769, 262420), (1538, 131210), (3076, 65605), (3845, 52484), (7690, 26242), (13121, 15380)]