81726720

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{21283}}^1$

素因数の和:21307

約数の個数: 72

約数和(自身を含む): 261026976

約数和(自身を除く): 179300256

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, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 21283, 42566, 63849, 85132, 106415, 127698, 170264, 212830, 255396, 319245, 340528, 425660, 510792, 638490, 681056, 851320, 1021584, 1276980, 1362112, 1702640, 2043168, 2553960, 2724224, 3405280, 4086336, 5107920, 5448448, 6810560, 8172672, 10215840, 13621120, 16345344, 20431680, 27242240, 40863360, 81726720]

約数ペア:

[(1, 81726720), (2, 40863360), (3, 27242240), (4, 20431680), (5, 16345344), (6, 13621120), (8, 10215840), (10, 8172672), (12, 6810560), (15, 5448448), (16, 5107920), (20, 4086336), (24, 3405280), (30, 2724224), (32, 2553960), (40, 2043168), (48, 1702640), (60, 1362112), (64, 1276980), (80, 1021584), (96, 851320), (120, 681056), (128, 638490), (160, 510792), (192, 425660), (240, 340528), (256, 319245), (320, 255396), (384, 212830), (480, 170264), (640, 127698), (768, 106415), (960, 85132), (1280, 63849), (1920, 42566), (3840, 21283)]