178101280

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{22717}}^1$

素因数の和:22746

約数の個数: 72

約数和(自身を含む): 489482028

約数和(自身を除く): 311380748

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 22717, 45434, 90868, 113585, 159019, 181736, 227170, 318038, 363472, 454340, 636076, 726944, 795095, 908680, 1113133, 1272152, 1590190, 1817360, 2226266, 2544304, 3180380, 3634720, 4452532, 5088608, 5565665, 6360760, 8905064, 11131330, 12721520, 17810128, 22262660, 25443040, 35620256, 44525320, 89050640, 178101280]

約数ペア:

[(1, 178101280), (2, 89050640), (4, 44525320), (5, 35620256), (7, 25443040), (8, 22262660), (10, 17810128), (14, 12721520), (16, 11131330), (20, 8905064), (28, 6360760), (32, 5565665), (35, 5088608), (40, 4452532), (49, 3634720), (56, 3180380), (70, 2544304), (80, 2226266), (98, 1817360), (112, 1590190), (140, 1272152), (160, 1113133), (196, 908680), (224, 795095), (245, 726944), (280, 636076), (392, 454340), (490, 363472), (560, 318038), (784, 227170), (980, 181736), (1120, 159019), (1568, 113585), (1960, 90868), (3920, 45434), (7840, 22717)]