202154440

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{9929}}^1$

素因数の和:10449

約数の個数: 32

約数和(自身を含む): 455787000

約数和(自身を除く): 253632560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 4072, 5090, 9929, 10180, 19858, 20360, 39716, 49645, 79432, 99290, 198580, 397160, 5053861, 10107722, 20215444, 25269305, 40430888, 50538610, 101077220, 202154440]

約数ペア:

[(1, 202154440), (2, 101077220), (4, 50538610), (5, 40430888), (8, 25269305), (10, 20215444), (20, 10107722), (40, 5053861), (509, 397160), (1018, 198580), (2036, 99290), (2545, 79432), (4072, 49645), (5090, 39716), (9929, 20360), (10180, 19858)]