20578004

素因数分解:

$2^2\times {\mathrm{131}}^1\times {\mathrm{173}}^1\times {\mathrm{227}}^1$

素因数の和:535

約数の個数: 24

約数和(自身を含む): 36656928

約数和(自身を除く): 16078924

約数列:

[1, 2, 4, 131, 173, 227, 262, 346, 454, 524, 692, 908, 22663, 29737, 39271, 45326, 59474, 78542, 90652, 118948, 157084, 5144501, 10289002, 20578004]

約数ペア:

[(1, 20578004), (2, 10289002), (4, 5144501), (131, 157084), (173, 118948), (227, 90652), (262, 78542), (346, 59474), (454, 45326), (524, 39271), (692, 29737), (908, 22663)]