20181692020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1931}}^1\times {\mathrm{74653}}^1$

素因数の和:76600

約数の個数: 48

約数和(自身を含む): 48461793408

約数和(自身を除く): 28280101388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1931, 3862, 7724, 9655, 13517, 19310, 27034, 38620, 54068, 67585, 74653, 135170, 149306, 270340, 298612, 373265, 522571, 746530, 1045142, 1493060, 2090284, 2612855, 5225710, 10451420, 144154943, 288309886, 576619772, 720774715, 1009084601, 1441549430, 2018169202, 2883098860, 4036338404, 5045423005, 10090846010, 20181692020]

約数ペア:

[(1, 20181692020), (2, 10090846010), (4, 5045423005), (5, 4036338404), (7, 2883098860), (10, 2018169202), (14, 1441549430), (20, 1009084601), (28, 720774715), (35, 576619772), (70, 288309886), (140, 144154943), (1931, 10451420), (3862, 5225710), (7724, 2612855), (9655, 2090284), (13517, 1493060), (19310, 1045142), (27034, 746530), (38620, 522571), (54068, 373265), (67585, 298612), (74653, 270340), (135170, 149306)]