280720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1$

素因数の和:64

約数の個数: 60

約数和(自身を含む): 742140

約数和(自身を除く): 461420

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 121, 145, 176, 220, 232, 242, 290, 319, 440, 464, 484, 580, 605, 638, 880, 968, 1160, 1210, 1276, 1595, 1936, 2320, 2420, 2552, 3190, 3509, 4840, 5104, 6380, 7018, 9680, 12760, 14036, 17545, 25520, 28072, 35090, 56144, 70180, 140360, 280720]

約数ペア:

[(1, 280720), (2, 140360), (4, 70180), (5, 56144), (8, 35090), (10, 28072), (11, 25520), (16, 17545), (20, 14036), (22, 12760), (29, 9680), (40, 7018), (44, 6380), (55, 5104), (58, 4840), (80, 3509), (88, 3190), (110, 2552), (116, 2420), (121, 2320), (145, 1936), (176, 1595), (220, 1276), (232, 1210), (242, 1160), (290, 968), (319, 880), (440, 638), (464, 605), (484, 580)]