1891324880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{73}}^1\times {\mathrm{337}}^1$

素因数の和:485

約数の個数: 120

約数和(自身を含む): 4619666376

約数和(自身を除く): 2728341496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 73, 80, 124, 146, 155, 248, 292, 310, 337, 365, 496, 584, 620, 674, 730, 961, 1168, 1240, 1348, 1460, 1685, 1922, 2263, 2480, 2696, 2920, 3370, 3844, 4526, 4805, 5392, 5840, 6740, 7688, 9052, 9610, 10447, 11315, 13480, 15376, 18104, 19220, 20894, 22630, 24601, 26960, 36208, 38440, 41788, 45260, 49202, 52235, 70153, 76880, 83576, 90520, 98404, 104470, 123005, 140306, 167152, 181040, 196808, 208940, 246010, 280612, 323857, 350765, 393616, 417880, 492020, 561224, 647714, 701530, 762631, 835760, 984040, 1122448, 1295428, 1403060, 1525262, 1619285, 1968080, 2590856, 2806120, 3050524, 3238570, 3813155, 5181712, 5612240, 6101048, 6477140, 7626310, 12202096, 12954280, 15252620, 23641561, 25908560, 30505240, 47283122, 61010480, 94566244, 118207805, 189132488, 236415610, 378264976, 472831220, 945662440, 1891324880]

約数ペア:

[(1, 1891324880), (2, 945662440), (4, 472831220), (5, 378264976), (8, 236415610), (10, 189132488), (16, 118207805), (20, 94566244), (31, 61010480), (40, 47283122), (62, 30505240), (73, 25908560), (80, 23641561), (124, 15252620), (146, 12954280), (155, 12202096), (248, 7626310), (292, 6477140), (310, 6101048), (337, 5612240), (365, 5181712), (496, 3813155), (584, 3238570), (620, 3050524), (674, 2806120), (730, 2590856), (961, 1968080), (1168, 1619285), (1240, 1525262), (1348, 1403060), (1460, 1295428), (1685, 1122448), (1922, 984040), (2263, 835760), (2480, 762631), (2696, 701530), (2920, 647714), (3370, 561224), (3844, 492020), (4526, 417880), (4805, 393616), (5392, 350765), (5840, 323857), (6740, 280612), (7688, 246010), (9052, 208940), (9610, 196808), (10447, 181040), (11315, 167152), (13480, 140306), (15376, 123005), (18104, 104470), (19220, 98404), (20894, 90520), (22630, 83576), (24601, 76880), (26960, 70153), (36208, 52235), (38440, 49202), (41788, 45260)]