1999799040

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2179}}^1$

素因数の和:2442

約数の個数: 144

約数和(自身を含む): 6416524800

約数和(自身を除く): 4416725760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 239, 240, 256, 320, 384, 478, 480, 640, 717, 768, 956, 960, 1195, 1280, 1434, 1912, 1920, 2179, 2390, 2868, 3585, 3824, 3840, 4358, 4780, 5736, 6537, 7170, 7648, 8716, 9560, 10895, 11472, 13074, 14340, 15296, 17432, 19120, 21790, 22944, 26148, 28680, 30592, 32685, 34864, 38240, 43580, 45888, 52296, 57360, 61184, 65370, 69728, 76480, 87160, 91776, 104592, 114720, 130740, 139456, 152960, 174320, 183552, 209184, 229440, 261480, 278912, 305920, 348640, 418368, 458880, 520781, 522960, 557824, 697280, 836736, 917760, 1041562, 1045920, 1394560, 1562343, 1673472, 2083124, 2091840, 2603905, 2789120, 3124686, 4166248, 4183680, 5207810, 6249372, 7811715, 8332496, 8367360, 10415620, 12498744, 15623430, 16664992, 20831240, 24997488, 31246860, 33329984, 41662480, 49994976, 62493720, 66659968, 83324960, 99989952, 124987440, 133319936, 166649920, 199979904, 249974880, 333299840, 399959808, 499949760, 666599680, 999899520, 1999799040]

約数ペア:

[(1, 1999799040), (2, 999899520), (3, 666599680), (4, 499949760), (5, 399959808), (6, 333299840), (8, 249974880), (10, 199979904), (12, 166649920), (15, 133319936), (16, 124987440), (20, 99989952), (24, 83324960), (30, 66659968), (32, 62493720), (40, 49994976), (48, 41662480), (60, 33329984), (64, 31246860), (80, 24997488), (96, 20831240), (120, 16664992), (128, 15623430), (160, 12498744), (192, 10415620), (239, 8367360), (240, 8332496), (256, 7811715), (320, 6249372), (384, 5207810), (478, 4183680), (480, 4166248), (640, 3124686), (717, 2789120), (768, 2603905), (956, 2091840), (960, 2083124), (1195, 1673472), (1280, 1562343), (1434, 1394560), (1912, 1045920), (1920, 1041562), (2179, 917760), (2390, 836736), (2868, 697280), (3585, 557824), (3824, 522960), (3840, 520781), (4358, 458880), (4780, 418368), (5736, 348640), (6537, 305920), (7170, 278912), (7648, 261480), (8716, 229440), (9560, 209184), (10895, 183552), (11472, 174320), (13074, 152960), (14340, 139456), (15296, 130740), (17432, 114720), (19120, 104592), (21790, 91776), (22944, 87160), (26148, 76480), (28680, 69728), (30592, 65370), (32685, 61184), (34864, 57360), (38240, 52296), (43580, 45888)]