72684740

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1\times {\mathrm{257}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 156038400

約数和(自身を除く): 83353660

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 179, 257, 316, 358, 395, 514, 716, 790, 895, 1028, 1285, 1580, 1790, 2570, 3580, 5140, 14141, 20303, 28282, 40606, 46003, 56564, 70705, 81212, 92006, 101515, 141410, 184012, 203030, 230015, 282820, 406060, 460030, 920060, 3634237, 7268474, 14536948, 18171185, 36342370, 72684740]

約数ペア:

[(1, 72684740), (2, 36342370), (4, 18171185), (5, 14536948), (10, 7268474), (20, 3634237), (79, 920060), (158, 460030), (179, 406060), (257, 282820), (316, 230015), (358, 203030), (395, 184012), (514, 141410), (716, 101515), (790, 92006), (895, 81212), (1028, 70705), (1285, 56564), (1580, 46003), (1790, 40606), (2570, 28282), (3580, 20303), (5140, 14141)]