13720120

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5623}}^1$

素因数の和:5695

約数の個数: 32

約数和(自身を含む): 31381920

約数和(自身を除く): 17661800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 5623, 11246, 22492, 28115, 44984, 56230, 112460, 224920, 343003, 686006, 1372012, 1715015, 2744024, 3430030, 6860060, 13720120]

約数ペア:

[(1, 13720120), (2, 6860060), (4, 3430030), (5, 2744024), (8, 1715015), (10, 1372012), (20, 686006), (40, 343003), (61, 224920), (122, 112460), (244, 56230), (305, 44984), (488, 28115), (610, 22492), (1220, 11246), (2440, 5623)]