640343040

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{887}}^1$

素因数の和:962

約数の個数: 176

約数和(自身を含む): 2094031872

約数和(自身を除く): 1453688832

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 47, 48, 60, 64, 80, 94, 96, 120, 128, 141, 160, 188, 192, 235, 240, 256, 282, 320, 376, 384, 470, 480, 512, 564, 640, 705, 752, 768, 887, 940, 960, 1024, 1128, 1280, 1410, 1504, 1536, 1774, 1880, 1920, 2256, 2560, 2661, 2820, 3008, 3072, 3548, 3760, 3840, 4435, 4512, 5120, 5322, 5640, 6016, 7096, 7520, 7680, 8870, 9024, 10644, 11280, 12032, 13305, 14192, 15040, 15360, 17740, 18048, 21288, 22560, 24064, 26610, 28384, 30080, 35480, 36096, 41689, 42576, 45120, 48128, 53220, 56768, 60160, 70960, 72192, 83378, 85152, 90240, 106440, 113536, 120320, 125067, 141920, 144384, 166756, 170304, 180480, 208445, 212880, 227072, 240640, 250134, 283840, 333512, 340608, 360960, 416890, 425760, 454144, 500268, 567680, 625335, 667024, 681216, 721920, 833780, 851520, 908288, 1000536, 1135360, 1250670, 1334048, 1362432, 1667560, 1703040, 2001072, 2270720, 2501340, 2668096, 2724864, 3335120, 3406080, 4002144, 4541440, 5002680, 5336192, 6670240, 6812160, 8004288, 10005360, 10672384, 13340480, 13624320, 16008576, 20010720, 21344768, 26680960, 32017152, 40021440, 42689536, 53361920, 64034304, 80042880, 106723840, 128068608, 160085760, 213447680, 320171520, 640343040]

約数ペア:

[(1, 640343040), (2, 320171520), (3, 213447680), (4, 160085760), (5, 128068608), (6, 106723840), (8, 80042880), (10, 64034304), (12, 53361920), (15, 42689536), (16, 40021440), (20, 32017152), (24, 26680960), (30, 21344768), (32, 20010720), (40, 16008576), (47, 13624320), (48, 13340480), (60, 10672384), (64, 10005360), (80, 8004288), (94, 6812160), (96, 6670240), (120, 5336192), (128, 5002680), (141, 4541440), (160, 4002144), (188, 3406080), (192, 3335120), (235, 2724864), (240, 2668096), (256, 2501340), (282, 2270720), (320, 2001072), (376, 1703040), (384, 1667560), (470, 1362432), (480, 1334048), (512, 1250670), (564, 1135360), (640, 1000536), (705, 908288), (752, 851520), (768, 833780), (887, 721920), (940, 681216), (960, 667024), (1024, 625335), (1128, 567680), (1280, 500268), (1410, 454144), (1504, 425760), (1536, 416890), (1774, 360960), (1880, 340608), (1920, 333512), (2256, 283840), (2560, 250134), (2661, 240640), (2820, 227072), (3008, 212880), (3072, 208445), (3548, 180480), (3760, 170304), (3840, 166756), (4435, 144384), (4512, 141920), (5120, 125067), (5322, 120320), (5640, 113536), (6016, 106440), (7096, 90240), (7520, 85152), (7680, 83378), (8870, 72192), (9024, 70960), (10644, 60160), (11280, 56768), (12032, 53220), (13305, 48128), (14192, 45120), (15040, 42576), (15360, 41689), (17740, 36096), (18048, 35480), (21288, 30080), (22560, 28384), (24064, 26610)]