256821408

素因数分解:

$2^5\times 3^3\times {\mathrm{297247}}^1$

素因数の和:297266

約数の個数: 48

約数和(自身を含む): 749064960

約数和(自身を除く): 492243552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 96, 108, 144, 216, 288, 432, 864, 297247, 594494, 891741, 1188988, 1783482, 2377976, 2675223, 3566964, 4755952, 5350446, 7133928, 8025669, 9511904, 10700892, 14267856, 16051338, 21401784, 28535712, 32102676, 42803568, 64205352, 85607136, 128410704, 256821408]

約数ペア:

[(1, 256821408), (2, 128410704), (3, 85607136), (4, 64205352), (6, 42803568), (8, 32102676), (9, 28535712), (12, 21401784), (16, 16051338), (18, 14267856), (24, 10700892), (27, 9511904), (32, 8025669), (36, 7133928), (48, 5350446), (54, 4755952), (72, 3566964), (96, 2675223), (108, 2377976), (144, 1783482), (216, 1188988), (288, 891741), (432, 594494), (864, 297247)]