71428800

素因数分解:

$2^6\times 3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:695

約数の個数: 168

約数和(自身を含む): 244912896

約数和(自身を除く): 173484096

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 25, 30, 32, 40, 46, 48, 50, 60, 64, 69, 75, 80, 92, 96, 100, 115, 120, 138, 150, 160, 184, 192, 200, 230, 240, 276, 300, 320, 345, 368, 400, 460, 480, 552, 575, 600, 647, 690, 736, 800, 920, 960, 1104, 1150, 1200, 1294, 1380, 1472, 1600, 1725, 1840, 1941, 2208, 2300, 2400, 2588, 2760, 3235, 3450, 3680, 3882, 4416, 4600, 4800, 5176, 5520, 6470, 6900, 7360, 7764, 9200, 9705, 10352, 11040, 12940, 13800, 14881, 15528, 16175, 18400, 19410, 20704, 22080, 25880, 27600, 29762, 31056, 32350, 36800, 38820, 41408, 44643, 48525, 51760, 55200, 59524, 62112, 64700, 74405, 77640, 89286, 97050, 103520, 110400, 119048, 124224, 129400, 148810, 155280, 178572, 194100, 207040, 223215, 238096, 258800, 297620, 310560, 357144, 372025, 388200, 446430, 476192, 517600, 595240, 621120, 714288, 744050, 776400, 892860, 952384, 1035200, 1116075, 1190480, 1428576, 1488100, 1552800, 1785720, 2232150, 2380960, 2857152, 2976200, 3105600, 3571440, 4464300, 4761920, 5952400, 7142880, 8928600, 11904800, 14285760, 17857200, 23809600, 35714400, 71428800]

約数ペア:

[(1, 71428800), (2, 35714400), (3, 23809600), (4, 17857200), (5, 14285760), (6, 11904800), (8, 8928600), (10, 7142880), (12, 5952400), (15, 4761920), (16, 4464300), (20, 3571440), (23, 3105600), (24, 2976200), (25, 2857152), (30, 2380960), (32, 2232150), (40, 1785720), (46, 1552800), (48, 1488100), (50, 1428576), (60, 1190480), (64, 1116075), (69, 1035200), (75, 952384), (80, 892860), (92, 776400), (96, 744050), (100, 714288), (115, 621120), (120, 595240), (138, 517600), (150, 476192), (160, 446430), (184, 388200), (192, 372025), (200, 357144), (230, 310560), (240, 297620), (276, 258800), (300, 238096), (320, 223215), (345, 207040), (368, 194100), (400, 178572), (460, 155280), (480, 148810), (552, 129400), (575, 124224), (600, 119048), (647, 110400), (690, 103520), (736, 97050), (800, 89286), (920, 77640), (960, 74405), (1104, 64700), (1150, 62112), (1200, 59524), (1294, 55200), (1380, 51760), (1472, 48525), (1600, 44643), (1725, 41408), (1840, 38820), (1941, 36800), (2208, 32350), (2300, 31056), (2400, 29762), (2588, 27600), (2760, 25880), (3235, 22080), (3450, 20704), (3680, 19410), (3882, 18400), (4416, 16175), (4600, 15528), (4800, 14881), (5176, 13800), (5520, 12940), (6470, 11040), (6900, 10352), (7360, 9705), (7764, 9200)]