1263800020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1579}}^1\times {\mathrm{5717}}^1$

素因数の和:7312

約数の個数: 48

約数和(自身を含む): 3035571840

約数和(自身を除く): 1771771820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1579, 3158, 5717, 6316, 7895, 11053, 11434, 15790, 22106, 22868, 28585, 31580, 40019, 44212, 55265, 57170, 80038, 110530, 114340, 160076, 200095, 221060, 400190, 800380, 9027143, 18054286, 36108572, 45135715, 63190001, 90271430, 126380002, 180542860, 252760004, 315950005, 631900010, 1263800020]

約数ペア:

[(1, 1263800020), (2, 631900010), (4, 315950005), (5, 252760004), (7, 180542860), (10, 126380002), (14, 90271430), (20, 63190001), (28, 45135715), (35, 36108572), (70, 18054286), (140, 9027143), (1579, 800380), (3158, 400190), (5717, 221060), (6316, 200095), (7895, 160076), (11053, 114340), (11434, 110530), (15790, 80038), (22106, 57170), (22868, 55265), (28585, 44212), (31580, 40019)]