123385220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{12413}}^1$

素因数の和:12500

約数の個数: 48

約数和(自身を含む): 300319488

約数和(自身を除く): 176934268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 12413, 24826, 49652, 62065, 86891, 124130, 173782, 248260, 347564, 434455, 868910, 881323, 1737820, 1762646, 3525292, 4406615, 6169261, 8813230, 12338522, 17626460, 24677044, 30846305, 61692610, 123385220]

約数ペア:

[(1, 123385220), (2, 61692610), (4, 30846305), (5, 24677044), (7, 17626460), (10, 12338522), (14, 8813230), (20, 6169261), (28, 4406615), (35, 3525292), (70, 1762646), (71, 1737820), (140, 881323), (142, 868910), (284, 434455), (355, 347564), (497, 248260), (710, 173782), (994, 124130), (1420, 86891), (1988, 62065), (2485, 49652), (4970, 24826), (9940, 12413)]