981569320

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{577}}^1\times {\mathrm{599}}^1$

素因数の和:1258

約数の個数: 64

約数和(自身を含む): 2247264000

約数和(自身を除く): 1265694680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 577, 599, 710, 1154, 1198, 1420, 2308, 2396, 2840, 2885, 2995, 4616, 4792, 5770, 5990, 11540, 11980, 23080, 23960, 40967, 42529, 81934, 85058, 163868, 170116, 204835, 212645, 327736, 340232, 345623, 409670, 425290, 691246, 819340, 850580, 1382492, 1638680, 1701160, 1728115, 2764984, 3456230, 6912460, 13824920, 24539233, 49078466, 98156932, 122696165, 196313864, 245392330, 490784660, 981569320]

約数ペア:

[(1, 981569320), (2, 490784660), (4, 245392330), (5, 196313864), (8, 122696165), (10, 98156932), (20, 49078466), (40, 24539233), (71, 13824920), (142, 6912460), (284, 3456230), (355, 2764984), (568, 1728115), (577, 1701160), (599, 1638680), (710, 1382492), (1154, 850580), (1198, 819340), (1420, 691246), (2308, 425290), (2396, 409670), (2840, 345623), (2885, 340232), (2995, 327736), (4616, 212645), (4792, 204835), (5770, 170116), (5990, 163868), (11540, 85058), (11980, 81934), (23080, 42529), (23960, 40967)]