20090240

素因数分解:

$2^7\times 5^1\times {\mathrm{31391}}^1$

素因数の和:31410

約数の個数: 32

約数和(自身を含む): 48029760

約数和(自身を除く): 27939520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31391, 62782, 125564, 156955, 251128, 313910, 502256, 627820, 1004512, 1255640, 2009024, 2511280, 4018048, 5022560, 10045120, 20090240]

約数ペア:

[(1, 20090240), (2, 10045120), (4, 5022560), (5, 4018048), (8, 2511280), (10, 2009024), (16, 1255640), (20, 1004512), (32, 627820), (40, 502256), (64, 313910), (80, 251128), (128, 156955), (160, 125564), (320, 62782), (640, 31391)]