280415088

素因数分解:

$2^4\times 3^3\times {\mathrm{31}}^1\times {\mathrm{20939}}^1$

素因数の和:20987

約数の個数: 80

約数和(自身を含む): 830899200

約数和(自身を除く): 550484112

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 31, 36, 48, 54, 62, 72, 93, 108, 124, 144, 186, 216, 248, 279, 372, 432, 496, 558, 744, 837, 1116, 1488, 1674, 2232, 3348, 4464, 6696, 13392, 20939, 41878, 62817, 83756, 125634, 167512, 188451, 251268, 335024, 376902, 502536, 565353, 649109, 753804, 1005072, 1130706, 1298218, 1507608, 1947327, 2261412, 2596436, 3015216, 3894654, 4522824, 5192872, 5841981, 7789308, 9045648, 10385744, 11683962, 15578616, 17525943, 23367924, 31157232, 35051886, 46735848, 70103772, 93471696, 140207544, 280415088]

約数ペア:

[(1, 280415088), (2, 140207544), (3, 93471696), (4, 70103772), (6, 46735848), (8, 35051886), (9, 31157232), (12, 23367924), (16, 17525943), (18, 15578616), (24, 11683962), (27, 10385744), (31, 9045648), (36, 7789308), (48, 5841981), (54, 5192872), (62, 4522824), (72, 3894654), (93, 3015216), (108, 2596436), (124, 2261412), (144, 1947327), (186, 1507608), (216, 1298218), (248, 1130706), (279, 1005072), (372, 753804), (432, 649109), (496, 565353), (558, 502536), (744, 376902), (837, 335024), (1116, 251268), (1488, 188451), (1674, 167512), (2232, 125634), (3348, 83756), (4464, 62817), (6696, 41878), (13392, 20939)]