1988800

素因数分解:

$2^6\times 5^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1$

素因数の和:146

約数の個数: 84

約数和(自身を含む): 5385816

約数和(自身を除く): 3397016

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 110, 113, 160, 176, 200, 220, 226, 275, 320, 352, 400, 440, 452, 550, 565, 704, 800, 880, 904, 1100, 1130, 1243, 1600, 1760, 1808, 2200, 2260, 2486, 2825, 3520, 3616, 4400, 4520, 4972, 5650, 6215, 7232, 8800, 9040, 9944, 11300, 12430, 17600, 18080, 19888, 22600, 24860, 31075, 36160, 39776, 45200, 49720, 62150, 79552, 90400, 99440, 124300, 180800, 198880, 248600, 397760, 497200, 994400, 1988800]

約数ペア:

[(1, 1988800), (2, 994400), (4, 497200), (5, 397760), (8, 248600), (10, 198880), (11, 180800), (16, 124300), (20, 99440), (22, 90400), (25, 79552), (32, 62150), (40, 49720), (44, 45200), (50, 39776), (55, 36160), (64, 31075), (80, 24860), (88, 22600), (100, 19888), (110, 18080), (113, 17600), (160, 12430), (176, 11300), (200, 9944), (220, 9040), (226, 8800), (275, 7232), (320, 6215), (352, 5650), (400, 4972), (440, 4520), (452, 4400), (550, 3616), (565, 3520), (704, 2825), (800, 2486), (880, 2260), (904, 2200), (1100, 1808), (1130, 1760), (1243, 1600)]