1990931.00000000

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:200

約数の個数: 80

約数和(自身を含む): 56567808

約数和(自身を除く): 31464752

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 43, 44, 62, 86, 88, 107, 124, 172, 176, 214, 248, 341, 344, 428, 473, 496, 682, 688, 856, 946, 1177, 1333, 1364, 1712, 1892, 2354, 2666, 2728, 3317, 3784, 4601, 4708, 5332, 5456, 6634, 7568, 9202, 9416, 10664, 13268, 14663, 18404, 18832, 21328, 26536, 29326, 36487, 36808, 50611, 53072, 58652, 72974, 73616, 101222, 117304, 142631, 145948, 202444, 234608, 285262, 291896, 404888, 570524, 583792, 809776, 1141048, 1568941, 2282096, 3137882, 6275764, 12551528, 25103056]

約数ペア:

[(1, 25103056), (2, 12551528), (4, 6275764), (8, 3137882), (11, 2282096), (16, 1568941), (22, 1141048), (31, 809776), (43, 583792), (44, 570524), (62, 404888), (86, 291896), (88, 285262), (107, 234608), (124, 202444), (172, 145948), (176, 142631), (214, 117304), (248, 101222), (341, 73616), (344, 72974), (428, 58652), (473, 53072), (496, 50611), (682, 36808), (688, 36487), (856, 29326), (946, 26536), (1177, 21328), (1333, 18832), (1364, 18404), (1712, 14663), (1892, 13268), (2354, 10664), (2666, 9416), (2728, 9202), (3317, 7568), (3784, 6634), (4601, 5456), (4708, 5332)]