20790720

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{7219}}^1$

素因数の和:7242

約数の個数: 84

約数和(自身を含む): 71521320

約数和(自身を除く): 50730600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 7219, 14438, 21657, 28876, 36095, 43314, 57752, 64971, 72190, 86628, 108285, 115504, 129942, 144380, 173256, 216570, 231008, 259884, 288760, 324855, 346512, 433140, 462016, 519768, 577520, 649710, 693024, 866280, 1039536, 1155040, 1299420, 1386048, 1732560, 2079072, 2310080, 2598840, 3465120, 4158144, 5197680, 6930240, 10395360, 20790720]

約数ペア:

[(1, 20790720), (2, 10395360), (3, 6930240), (4, 5197680), (5, 4158144), (6, 3465120), (8, 2598840), (9, 2310080), (10, 2079072), (12, 1732560), (15, 1386048), (16, 1299420), (18, 1155040), (20, 1039536), (24, 866280), (30, 693024), (32, 649710), (36, 577520), (40, 519768), (45, 462016), (48, 433140), (60, 346512), (64, 324855), (72, 288760), (80, 259884), (90, 231008), (96, 216570), (120, 173256), (144, 144380), (160, 129942), (180, 115504), (192, 108285), (240, 86628), (288, 72190), (320, 64971), (360, 57752), (480, 43314), (576, 36095), (720, 28876), (960, 21657), (1440, 14438), (2880, 7219)]