647427620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1093}}^1\times {\mathrm{4231}}^1$

素因数の和:5340

約数の個数: 48

約数和(自身を含む): 1555615488

約数和(自身を除く): 908187868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1093, 2186, 4231, 4372, 5465, 7651, 8462, 10930, 15302, 16924, 21155, 21860, 29617, 30604, 38255, 42310, 59234, 76510, 84620, 118468, 148085, 153020, 296170, 592340, 4624483, 9248966, 18497932, 23122415, 32371381, 46244830, 64742762, 92489660, 129485524, 161856905, 323713810, 647427620]

約数ペア:

[(1, 647427620), (2, 323713810), (4, 161856905), (5, 129485524), (7, 92489660), (10, 64742762), (14, 46244830), (20, 32371381), (28, 23122415), (35, 18497932), (70, 9248966), (140, 4624483), (1093, 592340), (2186, 296170), (4231, 153020), (4372, 148085), (5465, 118468), (7651, 84620), (8462, 76510), (10930, 59234), (15302, 42310), (16924, 38255), (21155, 30604), (21860, 29617)]