20265568

素因数分解:

$2^5\times {\mathrm{31}}^2\times {\mathrm{659}}^1$

素因数の和:731

約数の個数: 36

約数和(自身を含む): 41288940

約数和(自身を除く): 21023372

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 659, 961, 992, 1318, 1922, 2636, 3844, 5272, 7688, 10544, 15376, 20429, 21088, 30752, 40858, 81716, 163432, 326864, 633299, 653728, 1266598, 2533196, 5066392, 10132784, 20265568]

約数ペア:

[(1, 20265568), (2, 10132784), (4, 5066392), (8, 2533196), (16, 1266598), (31, 653728), (32, 633299), (62, 326864), (124, 163432), (248, 81716), (496, 40858), (659, 30752), (961, 21088), (992, 20429), (1318, 15376), (1922, 10544), (2636, 7688), (3844, 5272)]