2019913420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{127681}}^1$

素因数の和:127810

約数の個数: 48

約数和(自身を含む): 4890731328

約数和(自身を除く): 2870817908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 113, 140, 226, 452, 565, 791, 1130, 1582, 2260, 3164, 3955, 7910, 15820, 127681, 255362, 510724, 638405, 893767, 1276810, 1787534, 2553620, 3575068, 4468835, 8937670, 14427953, 17875340, 28855906, 57711812, 72139765, 100995671, 144279530, 201991342, 288559060, 403982684, 504978355, 1009956710, 2019913420]

約数ペア:

[(1, 2019913420), (2, 1009956710), (4, 504978355), (5, 403982684), (7, 288559060), (10, 201991342), (14, 144279530), (20, 100995671), (28, 72139765), (35, 57711812), (70, 28855906), (113, 17875340), (140, 14427953), (226, 8937670), (452, 4468835), (565, 3575068), (791, 2553620), (1130, 1787534), (1582, 1276810), (2260, 893767), (3164, 638405), (3955, 510724), (7910, 255362), (15820, 127681)]