77721760

素因数分解:

$2^5\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1847}}^1$

素因数の和:2125

約数の個数: 48

約数和(自身を含む): 184415616

約数和(自身を除く): 106693856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 263, 526, 1052, 1315, 1847, 2104, 2630, 3694, 4208, 5260, 7388, 8416, 9235, 10520, 14776, 18470, 21040, 29552, 36940, 42080, 59104, 73880, 147760, 295520, 485761, 971522, 1943044, 2428805, 3886088, 4857610, 7772176, 9715220, 15544352, 19430440, 38860880, 77721760]

約数ペア:

[(1, 77721760), (2, 38860880), (4, 19430440), (5, 15544352), (8, 9715220), (10, 7772176), (16, 4857610), (20, 3886088), (32, 2428805), (40, 1943044), (80, 971522), (160, 485761), (263, 295520), (526, 147760), (1052, 73880), (1315, 59104), (1847, 42080), (2104, 36940), (2630, 29552), (3694, 21040), (4208, 18470), (5260, 14776), (7388, 10520), (8416, 9235)]