19849120

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{947}}^1$

素因数の和:1093

約数の個数: 48

約数和(自身を含む): 47301408

約数和(自身を除く): 27452288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 160, 262, 524, 655, 947, 1048, 1310, 1894, 2096, 2620, 3788, 4192, 4735, 5240, 7576, 9470, 10480, 15152, 18940, 20960, 30304, 37880, 75760, 124057, 151520, 248114, 496228, 620285, 992456, 1240570, 1984912, 2481140, 3969824, 4962280, 9924560, 19849120]

約数ペア:

[(1, 19849120), (2, 9924560), (4, 4962280), (5, 3969824), (8, 2481140), (10, 1984912), (16, 1240570), (20, 992456), (32, 620285), (40, 496228), (80, 248114), (131, 151520), (160, 124057), (262, 75760), (524, 37880), (655, 30304), (947, 20960), (1048, 18940), (1310, 15152), (1894, 10480), (2096, 9470), (2620, 7576), (3788, 5240), (4192, 4735)]