15930640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:488

約数の個数: 80

約数和(自身を含む): 41443776

約数和(自身を除く): 25513136

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 421, 430, 440, 473, 688, 842, 860, 880, 946, 1684, 1720, 1892, 2105, 2365, 3368, 3440, 3784, 4210, 4631, 4730, 6736, 7568, 8420, 9262, 9460, 16840, 18103, 18524, 18920, 23155, 33680, 36206, 37048, 37840, 46310, 72412, 74096, 90515, 92620, 144824, 181030, 185240, 199133, 289648, 362060, 370480, 398266, 724120, 796532, 995665, 1448240, 1593064, 1991330, 3186128, 3982660, 7965320, 15930640]

約数ペア:

[(1, 15930640), (2, 7965320), (4, 3982660), (5, 3186128), (8, 1991330), (10, 1593064), (11, 1448240), (16, 995665), (20, 796532), (22, 724120), (40, 398266), (43, 370480), (44, 362060), (55, 289648), (80, 199133), (86, 185240), (88, 181030), (110, 144824), (172, 92620), (176, 90515), (215, 74096), (220, 72412), (344, 46310), (421, 37840), (430, 37048), (440, 36206), (473, 33680), (688, 23155), (842, 18920), (860, 18524), (880, 18103), (946, 16840), (1684, 9460), (1720, 9262), (1892, 8420), (2105, 7568), (2365, 6736), (3368, 4730), (3440, 4631), (3784, 4210)]