20710420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{60913}}^1$

素因数の和:60939

約数の個数: 24

約数和(自身を含む): 46050984

約数和(自身を除く): 25340564

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 60913, 121826, 243652, 304565, 609130, 1035521, 1218260, 2071042, 4142084, 5177605, 10355210, 20710420]

約数ペア:

[(1, 20710420), (2, 10355210), (4, 5177605), (5, 4142084), (10, 2071042), (17, 1218260), (20, 1035521), (34, 609130), (68, 304565), (85, 243652), (170, 121826), (340, 60913)]