1388259520

素因数分解:

$2^6\times 5^1\times {\mathrm{1409}}^1\times {\mathrm{3079}}^1$

素因数の和:4505

約数の個数: 56

約数和(自身を含む): 3309213600

約数和(自身を除く): 1920954080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1409, 2818, 3079, 5636, 6158, 7045, 11272, 12316, 14090, 15395, 22544, 24632, 28180, 30790, 45088, 49264, 56360, 61580, 90176, 98528, 112720, 123160, 197056, 225440, 246320, 450880, 492640, 985280, 4338311, 8676622, 17353244, 21691555, 34706488, 43383110, 69412976, 86766220, 138825952, 173532440, 277651904, 347064880, 694129760, 1388259520]

約数ペア:

[(1, 1388259520), (2, 694129760), (4, 347064880), (5, 277651904), (8, 173532440), (10, 138825952), (16, 86766220), (20, 69412976), (32, 43383110), (40, 34706488), (64, 21691555), (80, 17353244), (160, 8676622), (320, 4338311), (1409, 985280), (2818, 492640), (3079, 450880), (5636, 246320), (6158, 225440), (7045, 197056), (11272, 123160), (12316, 112720), (14090, 98528), (15395, 90176), (22544, 61580), (24632, 56360), (28180, 49264), (30790, 45088)]