1215690020

素因数分解:

$2^2\times 5^1\times {\mathrm{2801}}^1\times {\mathrm{21701}}^1$

素因数の和:24511

約数の個数: 24

約数和(自身を含む): 2553978168

約数和(自身を除く): 1338288148

約数列:

[1, 2, 4, 5, 10, 20, 2801, 5602, 11204, 14005, 21701, 28010, 43402, 56020, 86804, 108505, 217010, 434020, 60784501, 121569002, 243138004, 303922505, 607845010, 1215690020]

約数ペア:

[(1, 1215690020), (2, 607845010), (4, 303922505), (5, 243138004), (10, 121569002), (20, 60784501), (2801, 434020), (5602, 217010), (11204, 108505), (14005, 86804), (21701, 56020), (28010, 43402)]