18326980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{18701}}^1$

素因数の和:18724

約数の個数: 36

約数和(自身を含む): 44772588

約数和(自身を除く): 26445608

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 18701, 37402, 74804, 93505, 130907, 187010, 261814, 374020, 523628, 654535, 916349, 1309070, 1832698, 2618140, 3665396, 4581745, 9163490, 18326980]

約数ペア:

[(1, 18326980), (2, 9163490), (4, 4581745), (5, 3665396), (7, 2618140), (10, 1832698), (14, 1309070), (20, 916349), (28, 654535), (35, 523628), (49, 374020), (70, 261814), (98, 187010), (140, 130907), (196, 93505), (245, 74804), (490, 37402), (980, 18701)]