77477920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^2$

素因数の和:414

約数の個数: 72

約数和(自身を含む): 198148356

約数和(自身を除く): 120670436

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 193, 208, 260, 386, 416, 520, 772, 965, 1040, 1544, 1930, 2080, 2509, 3088, 3860, 5018, 6176, 7720, 10036, 12545, 15440, 20072, 25090, 30880, 37249, 40144, 50180, 74498, 80288, 100360, 148996, 186245, 200720, 297992, 372490, 401440, 484237, 595984, 744980, 968474, 1191968, 1489960, 1936948, 2421185, 2979920, 3873896, 4842370, 5959840, 7747792, 9684740, 15495584, 19369480, 38738960, 77477920]

約数ペア:

[(1, 77477920), (2, 38738960), (4, 19369480), (5, 15495584), (8, 9684740), (10, 7747792), (13, 5959840), (16, 4842370), (20, 3873896), (26, 2979920), (32, 2421185), (40, 1936948), (52, 1489960), (65, 1191968), (80, 968474), (104, 744980), (130, 595984), (160, 484237), (193, 401440), (208, 372490), (260, 297992), (386, 200720), (416, 186245), (520, 148996), (772, 100360), (965, 80288), (1040, 74498), (1544, 50180), (1930, 40144), (2080, 37249), (2509, 30880), (3088, 25090), (3860, 20072), (5018, 15440), (6176, 12545), (7720, 10036)]