20920928

素因数分解:

$2^5\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1583}}^1$

素因数の和:1659

約数の個数: 48

約数和(自身を含む): 47900160

約数和(自身を除く): 26979232

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 59, 112, 118, 224, 236, 413, 472, 826, 944, 1583, 1652, 1888, 3166, 3304, 6332, 6608, 11081, 12664, 13216, 22162, 25328, 44324, 50656, 88648, 93397, 177296, 186794, 354592, 373588, 653779, 747176, 1307558, 1494352, 2615116, 2988704, 5230232, 10460464, 20920928]

約数ペア:

[(1, 20920928), (2, 10460464), (4, 5230232), (7, 2988704), (8, 2615116), (14, 1494352), (16, 1307558), (28, 747176), (32, 653779), (56, 373588), (59, 354592), (112, 186794), (118, 177296), (224, 93397), (236, 88648), (413, 50656), (472, 44324), (826, 25328), (944, 22162), (1583, 13216), (1652, 12664), (1888, 11081), (3166, 6608), (3304, 6332)]