20121479140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8454403}}^1$

素因数の和:8454436

約数の個数: 48

約数和(自身を含む): 51132235392

約数和(自身を除く): 31010756252

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 8454403, 16908806, 33817612, 42272015, 59180821, 84544030, 118361642, 143724851, 169088060, 236723284, 287449702, 295904105, 574899404, 591808210, 718624255, 1006073957, 1183616420, 1437248510, 2012147914, 2874497020, 4024295828, 5030369785, 10060739570, 20121479140]

約数ペア:

[(1, 20121479140), (2, 10060739570), (4, 5030369785), (5, 4024295828), (7, 2874497020), (10, 2012147914), (14, 1437248510), (17, 1183616420), (20, 1006073957), (28, 718624255), (34, 591808210), (35, 574899404), (68, 295904105), (70, 287449702), (85, 236723284), (119, 169088060), (140, 143724851), (170, 118361642), (238, 84544030), (340, 59180821), (476, 42272015), (595, 33817612), (1190, 16908806), (2380, 8454403)]