18708720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{569}}^1$

素因数の和:722

約数の個数: 80

約数和(自身を含む): 58523040

約数和(自身を除く): 39814320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 137, 240, 274, 411, 548, 569, 685, 822, 1096, 1138, 1370, 1644, 1707, 2055, 2192, 2276, 2740, 2845, 3288, 3414, 4110, 4552, 5480, 5690, 6576, 6828, 8220, 8535, 9104, 10960, 11380, 13656, 16440, 17070, 22760, 27312, 32880, 34140, 45520, 68280, 77953, 136560, 155906, 233859, 311812, 389765, 467718, 623624, 779530, 935436, 1169295, 1247248, 1559060, 1870872, 2338590, 3118120, 3741744, 4677180, 6236240, 9354360, 18708720]

約数ペア:

[(1, 18708720), (2, 9354360), (3, 6236240), (4, 4677180), (5, 3741744), (6, 3118120), (8, 2338590), (10, 1870872), (12, 1559060), (15, 1247248), (16, 1169295), (20, 935436), (24, 779530), (30, 623624), (40, 467718), (48, 389765), (60, 311812), (80, 233859), (120, 155906), (137, 136560), (240, 77953), (274, 68280), (411, 45520), (548, 34140), (569, 32880), (685, 27312), (822, 22760), (1096, 17070), (1138, 16440), (1370, 13656), (1644, 11380), (1707, 10960), (2055, 9104), (2192, 8535), (2276, 8220), (2740, 6828), (2845, 6576), (3288, 5690), (3414, 5480), (4110, 4552)]