747880000

素因数分解:

$2^6\times 5^4\times 7^1\times {\mathrm{2671}}^1$

素因数の和:2710

約数の個数: 140

約数和(自身を含む): 2120221312

約数和(自身を除く): 1372341312

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 125, 140, 160, 175, 200, 224, 250, 280, 320, 350, 400, 448, 500, 560, 625, 700, 800, 875, 1000, 1120, 1250, 1400, 1600, 1750, 2000, 2240, 2500, 2671, 2800, 3500, 4000, 4375, 5000, 5342, 5600, 7000, 8000, 8750, 10000, 10684, 11200, 13355, 14000, 17500, 18697, 20000, 21368, 26710, 28000, 35000, 37394, 40000, 42736, 53420, 56000, 66775, 70000, 74788, 85472, 93485, 106840, 133550, 140000, 149576, 170944, 186970, 213680, 267100, 280000, 299152, 333875, 373940, 427360, 467425, 534200, 598304, 667750, 747880, 854720, 934850, 1068400, 1196608, 1335500, 1495760, 1669375, 1869700, 2136800, 2337125, 2671000, 2991520, 3338750, 3739400, 4273600, 4674250, 5342000, 5983040, 6677500, 7478800, 9348500, 10684000, 11685625, 13355000, 14957600, 18697000, 21368000, 23371250, 26710000, 29915200, 37394000, 46742500, 53420000, 74788000, 93485000, 106840000, 149576000, 186970000, 373940000, 747880000]

約数ペア:

[(1, 747880000), (2, 373940000), (4, 186970000), (5, 149576000), (7, 106840000), (8, 93485000), (10, 74788000), (14, 53420000), (16, 46742500), (20, 37394000), (25, 29915200), (28, 26710000), (32, 23371250), (35, 21368000), (40, 18697000), (50, 14957600), (56, 13355000), (64, 11685625), (70, 10684000), (80, 9348500), (100, 7478800), (112, 6677500), (125, 5983040), (140, 5342000), (160, 4674250), (175, 4273600), (200, 3739400), (224, 3338750), (250, 2991520), (280, 2671000), (320, 2337125), (350, 2136800), (400, 1869700), (448, 1669375), (500, 1495760), (560, 1335500), (625, 1196608), (700, 1068400), (800, 934850), (875, 854720), (1000, 747880), (1120, 667750), (1250, 598304), (1400, 534200), (1600, 467425), (1750, 427360), (2000, 373940), (2240, 333875), (2500, 299152), (2671, 280000), (2800, 267100), (3500, 213680), (4000, 186970), (4375, 170944), (5000, 149576), (5342, 140000), (5600, 133550), (7000, 106840), (8000, 93485), (8750, 85472), (10000, 74788), (10684, 70000), (11200, 66775), (13355, 56000), (14000, 53420), (17500, 42736), (18697, 40000), (20000, 37394), (21368, 35000), (26710, 28000)]