289768840

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{857}}^1$

素因数の和:1054

約数の個数: 64

約数和(自身を含む): 667180800

約数和(自身を除く): 377411960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 107, 158, 214, 316, 395, 428, 535, 632, 790, 856, 857, 1070, 1580, 1714, 2140, 3160, 3428, 4280, 4285, 6856, 8453, 8570, 16906, 17140, 33812, 34280, 42265, 67624, 67703, 84530, 91699, 135406, 169060, 183398, 270812, 338120, 338515, 366796, 458495, 541624, 677030, 733592, 916990, 1354060, 1833980, 2708120, 3667960, 7244221, 14488442, 28976884, 36221105, 57953768, 72442210, 144884420, 289768840]

約数ペア:

[(1, 289768840), (2, 144884420), (4, 72442210), (5, 57953768), (8, 36221105), (10, 28976884), (20, 14488442), (40, 7244221), (79, 3667960), (107, 2708120), (158, 1833980), (214, 1354060), (316, 916990), (395, 733592), (428, 677030), (535, 541624), (632, 458495), (790, 366796), (856, 338515), (857, 338120), (1070, 270812), (1580, 183398), (1714, 169060), (2140, 135406), (3160, 91699), (3428, 84530), (4280, 67703), (4285, 67624), (6856, 42265), (8453, 34280), (8570, 33812), (16906, 17140)]