72480140

素因数分解:

$2^2\times 5^1\times {\mathrm{1481}}^1\times {\mathrm{2447}}^1$

素因数の和:3937

約数の個数: 24

約数和(自身を含む): 152373312

約数和(自身を除く): 79893172

約数列:

[1, 2, 4, 5, 10, 20, 1481, 2447, 2962, 4894, 5924, 7405, 9788, 12235, 14810, 24470, 29620, 48940, 3624007, 7248014, 14496028, 18120035, 36240070, 72480140]

約数ペア:

[(1, 72480140), (2, 36240070), (4, 18120035), (5, 14496028), (10, 7248014), (20, 3624007), (1481, 48940), (2447, 29620), (2962, 24470), (4894, 14810), (5924, 12235), (7405, 9788)]