71280280

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{4253}}^1$

素因数の和:4683

約数の個数: 32

約数和(自身を含む): 160801200

約数和(自身を除く): 89520920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1676, 2095, 3352, 4190, 4253, 8380, 8506, 16760, 17012, 21265, 34024, 42530, 85060, 170120, 1782007, 3564014, 7128028, 8910035, 14256056, 17820070, 35640140, 71280280]

約数ペア:

[(1, 71280280), (2, 35640140), (4, 17820070), (5, 14256056), (8, 8910035), (10, 7128028), (20, 3564014), (40, 1782007), (419, 170120), (838, 85060), (1676, 42530), (2095, 34024), (3352, 21265), (4190, 17012), (4253, 16760), (8380, 8506)]