256501968

素因数分解:

$2^4\times 3^1\times {\mathrm{499}}^1\times {\mathrm{10709}}^1$

素因数の和:11219

約数の個数: 40

約数和(自身を含む): 664020000

約数和(自身を除く): 407518032

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 499, 998, 1497, 1996, 2994, 3992, 5988, 7984, 10709, 11976, 21418, 23952, 32127, 42836, 64254, 85672, 128508, 171344, 257016, 514032, 5343791, 10687582, 16031373, 21375164, 32062746, 42750328, 64125492, 85500656, 128250984, 256501968]

約数ペア:

[(1, 256501968), (2, 128250984), (3, 85500656), (4, 64125492), (6, 42750328), (8, 32062746), (12, 21375164), (16, 16031373), (24, 10687582), (48, 5343791), (499, 514032), (998, 257016), (1497, 171344), (1996, 128508), (2994, 85672), (3992, 64254), (5988, 42836), (7984, 32127), (10709, 23952), (11976, 21418)]