7965320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:486

約数の個数: 64

約数和(自身を含む): 20053440

約数和(自身を除く): 12088120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 421, 430, 440, 473, 842, 860, 946, 1684, 1720, 1892, 2105, 2365, 3368, 3784, 4210, 4631, 4730, 8420, 9262, 9460, 16840, 18103, 18524, 18920, 23155, 36206, 37048, 46310, 72412, 90515, 92620, 144824, 181030, 185240, 199133, 362060, 398266, 724120, 796532, 995665, 1593064, 1991330, 3982660, 7965320]

約数ペア:

[(1, 7965320), (2, 3982660), (4, 1991330), (5, 1593064), (8, 995665), (10, 796532), (11, 724120), (20, 398266), (22, 362060), (40, 199133), (43, 185240), (44, 181030), (55, 144824), (86, 92620), (88, 90515), (110, 72412), (172, 46310), (215, 37048), (220, 36206), (344, 23155), (421, 18920), (430, 18524), (440, 18103), (473, 16840), (842, 9460), (860, 9262), (946, 8420), (1684, 4730), (1720, 4631), (1892, 4210), (2105, 3784), (2365, 3368)]