1784992020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{4249981}}^1$

素因数の和:4250000

約数の個数: 48

約数和(自身を含む): 5711975808

約数和(自身を除く): 3926983788

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 4249981, 8499962, 12749943, 16999924, 21249905, 25499886, 29749867, 42499810, 50999772, 59499734, 63749715, 84999620, 89249601, 118999468, 127499430, 148749335, 178499202, 254998860, 297498670, 356998404, 446248005, 594997340, 892496010, 1784992020]

約数ペア:

[(1, 1784992020), (2, 892496010), (3, 594997340), (4, 446248005), (5, 356998404), (6, 297498670), (7, 254998860), (10, 178499202), (12, 148749335), (14, 127499430), (15, 118999468), (20, 89249601), (21, 84999620), (28, 63749715), (30, 59499734), (35, 50999772), (42, 42499810), (60, 29749867), (70, 25499886), (84, 21249905), (105, 16999924), (140, 12749943), (210, 8499962), (420, 4249981)]