1389976440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{681361}}^1$

素因数の和:681392

約数の個数: 64

約数和(自身を含む): 4415225760

約数和(自身を除く): 3025249320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 681361, 1362722, 2044083, 2725444, 3406805, 4088166, 5450888, 6813610, 8176332, 10220415, 11583137, 13627220, 16352664, 20440830, 23166274, 27254440, 34749411, 40881660, 46332548, 57915685, 69498822, 81763320, 92665096, 115831370, 138997644, 173747055, 231662740, 277995288, 347494110, 463325480, 694988220, 1389976440]

約数ペア:

[(1, 1389976440), (2, 694988220), (3, 463325480), (4, 347494110), (5, 277995288), (6, 231662740), (8, 173747055), (10, 138997644), (12, 115831370), (15, 92665096), (17, 81763320), (20, 69498822), (24, 57915685), (30, 46332548), (34, 40881660), (40, 34749411), (51, 27254440), (60, 23166274), (68, 20440830), (85, 16352664), (102, 13627220), (120, 11583137), (136, 10220415), (170, 8176332), (204, 6813610), (255, 5450888), (340, 4088166), (408, 3406805), (510, 2725444), (680, 2044083), (1020, 1362722), (2040, 681361)]