28571520

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:692

約数の個数: 128

約数和(自身を含む): 95178240

約数和(自身を除く): 66606720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 64, 69, 80, 92, 96, 115, 120, 128, 138, 160, 184, 192, 230, 240, 276, 320, 345, 368, 384, 460, 480, 552, 640, 647, 690, 736, 920, 960, 1104, 1294, 1380, 1472, 1840, 1920, 1941, 2208, 2588, 2760, 2944, 3235, 3680, 3882, 4416, 5176, 5520, 6470, 7360, 7764, 8832, 9705, 10352, 11040, 12940, 14720, 14881, 15528, 19410, 20704, 22080, 25880, 29762, 31056, 38820, 41408, 44160, 44643, 51760, 59524, 62112, 74405, 77640, 82816, 89286, 103520, 119048, 124224, 148810, 155280, 178572, 207040, 223215, 238096, 248448, 297620, 310560, 357144, 414080, 446430, 476192, 595240, 621120, 714288, 892860, 952384, 1190480, 1242240, 1428576, 1785720, 1904768, 2380960, 2857152, 3571440, 4761920, 5714304, 7142880, 9523840, 14285760, 28571520]

約数ペア:

[(1, 28571520), (2, 14285760), (3, 9523840), (4, 7142880), (5, 5714304), (6, 4761920), (8, 3571440), (10, 2857152), (12, 2380960), (15, 1904768), (16, 1785720), (20, 1428576), (23, 1242240), (24, 1190480), (30, 952384), (32, 892860), (40, 714288), (46, 621120), (48, 595240), (60, 476192), (64, 446430), (69, 414080), (80, 357144), (92, 310560), (96, 297620), (115, 248448), (120, 238096), (128, 223215), (138, 207040), (160, 178572), (184, 155280), (192, 148810), (230, 124224), (240, 119048), (276, 103520), (320, 89286), (345, 82816), (368, 77640), (384, 74405), (460, 62112), (480, 59524), (552, 51760), (640, 44643), (647, 44160), (690, 41408), (736, 38820), (920, 31056), (960, 29762), (1104, 25880), (1294, 22080), (1380, 20704), (1472, 19410), (1840, 15528), (1920, 14881), (1941, 14720), (2208, 12940), (2588, 11040), (2760, 10352), (2944, 9705), (3235, 8832), (3680, 7764), (3882, 7360), (4416, 6470), (5176, 5520)]