18290080

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1447}}^1$

素因数の和:1541

約数の個数: 48

約数和(自身を含む): 43787520

約数和(自身を除く): 25497440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1264, 1447, 1580, 2528, 2894, 3160, 5788, 6320, 7235, 11576, 12640, 14470, 23152, 28940, 46304, 57880, 114313, 115760, 228626, 231520, 457252, 571565, 914504, 1143130, 1829008, 2286260, 3658016, 4572520, 9145040, 18290080]

約数ペア:

[(1, 18290080), (2, 9145040), (4, 4572520), (5, 3658016), (8, 2286260), (10, 1829008), (16, 1143130), (20, 914504), (32, 571565), (40, 457252), (79, 231520), (80, 228626), (158, 115760), (160, 114313), (316, 57880), (395, 46304), (632, 28940), (790, 23152), (1264, 14470), (1447, 12640), (1580, 11576), (2528, 7235), (2894, 6320), (3160, 5788)]