20798780

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{9203}}^1$

素因数の和:9325

約数の個数: 24

約数和(自身を含む): 44068752

約数和(自身を除く): 23269972

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 9203, 18406, 36812, 46015, 92030, 184060, 1039939, 2079878, 4159756, 5199695, 10399390, 20798780]

約数ペア:

[(1, 20798780), (2, 10399390), (4, 5199695), (5, 4159756), (10, 2079878), (20, 1039939), (113, 184060), (226, 92030), (452, 46015), (565, 36812), (1130, 18406), (2260, 9203)]