447388280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1\times {\mathrm{857}}^1$

素因数の和:1320

約数の個数: 64

約数和(自身を含む): 1042778880

約数和(自身を除く): 595390600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 421, 620, 842, 857, 1240, 1684, 1714, 2105, 3368, 3428, 4210, 4285, 6856, 8420, 8570, 13051, 16840, 17140, 26102, 26567, 34280, 52204, 53134, 65255, 104408, 106268, 130510, 132835, 212536, 261020, 265670, 360797, 522040, 531340, 721594, 1062680, 1443188, 1803985, 2886376, 3607970, 7215940, 11184707, 14431880, 22369414, 44738828, 55923535, 89477656, 111847070, 223694140, 447388280]

約数ペア:

[(1, 447388280), (2, 223694140), (4, 111847070), (5, 89477656), (8, 55923535), (10, 44738828), (20, 22369414), (31, 14431880), (40, 11184707), (62, 7215940), (124, 3607970), (155, 2886376), (248, 1803985), (310, 1443188), (421, 1062680), (620, 721594), (842, 531340), (857, 522040), (1240, 360797), (1684, 265670), (1714, 261020), (2105, 212536), (3368, 132835), (3428, 130510), (4210, 106268), (4285, 104408), (6856, 65255), (8420, 53134), (8570, 52204), (13051, 34280), (16840, 26567), (17140, 26102)]