28187760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{457}}^1$

素因数の和:730

約数の個数: 80

約数和(自身を含む): 87914016

約数和(自身を除く): 59726256

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 257, 457, 514, 771, 914, 1028, 1285, 1371, 1542, 1828, 2056, 2285, 2570, 2742, 3084, 3656, 3855, 4112, 4570, 5140, 5484, 6168, 6855, 7312, 7710, 9140, 10280, 10968, 12336, 13710, 15420, 18280, 20560, 21936, 27420, 30840, 36560, 54840, 61680, 109680, 117449, 234898, 352347, 469796, 587245, 704694, 939592, 1174490, 1409388, 1761735, 1879184, 2348980, 2818776, 3523470, 4697960, 5637552, 7046940, 9395920, 14093880, 28187760]

約数ペア:

[(1, 28187760), (2, 14093880), (3, 9395920), (4, 7046940), (5, 5637552), (6, 4697960), (8, 3523470), (10, 2818776), (12, 2348980), (15, 1879184), (16, 1761735), (20, 1409388), (24, 1174490), (30, 939592), (40, 704694), (48, 587245), (60, 469796), (80, 352347), (120, 234898), (240, 117449), (257, 109680), (457, 61680), (514, 54840), (771, 36560), (914, 30840), (1028, 27420), (1285, 21936), (1371, 20560), (1542, 18280), (1828, 15420), (2056, 13710), (2285, 12336), (2570, 10968), (2742, 10280), (3084, 9140), (3656, 7710), (3855, 7312), (4112, 6855), (4570, 6168), (5140, 5484)]