20602900

素因数分解:

$2^2\times 5^2\times {\mathrm{179}}^1\times {\mathrm{1151}}^1$

素因数の和:1344

約数の個数: 36

約数和(自身を含む): 44997120

約数和(自身を除く): 24394220

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 179, 358, 716, 895, 1151, 1790, 2302, 3580, 4475, 4604, 5755, 8950, 11510, 17900, 23020, 28775, 57550, 115100, 206029, 412058, 824116, 1030145, 2060290, 4120580, 5150725, 10301450, 20602900]

約数ペア:

[(1, 20602900), (2, 10301450), (4, 5150725), (5, 4120580), (10, 2060290), (20, 1030145), (25, 824116), (50, 412058), (100, 206029), (179, 115100), (358, 57550), (716, 28775), (895, 23020), (1151, 17900), (1790, 11510), (2302, 8950), (3580, 5755), (4475, 4604)]