20316820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1523}}^1$

素因数の和:1584

約数の個数: 48

約数和(自身を含む): 46085760

約数和(自身を除く): 25768940

約数列:

[1, 2, 4, 5, 10, 20, 23, 29, 46, 58, 92, 115, 116, 145, 230, 290, 460, 580, 667, 1334, 1523, 2668, 3046, 3335, 6092, 6670, 7615, 13340, 15230, 30460, 35029, 44167, 70058, 88334, 140116, 175145, 176668, 220835, 350290, 441670, 700580, 883340, 1015841, 2031682, 4063364, 5079205, 10158410, 20316820]

約数ペア:

[(1, 20316820), (2, 10158410), (4, 5079205), (5, 4063364), (10, 2031682), (20, 1015841), (23, 883340), (29, 700580), (46, 441670), (58, 350290), (92, 220835), (115, 176668), (116, 175145), (145, 140116), (230, 88334), (290, 70058), (460, 44167), (580, 35029), (667, 30460), (1334, 15230), (1523, 13340), (2668, 7615), (3046, 6670), (3335, 6092)]