31787140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20641}}^1$

素因数の和:20668

約数の個数: 48

約数和(自身を含む): 83228544

約数和(自身を除く): 51441404

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 20641, 41282, 82564, 103205, 144487, 206410, 227051, 288974, 412820, 454102, 577948, 722435, 908204, 1135255, 1444870, 1589357, 2270510, 2889740, 3178714, 4541020, 6357428, 7946785, 15893570, 31787140]

約数ペア:

[(1, 31787140), (2, 15893570), (4, 7946785), (5, 6357428), (7, 4541020), (10, 3178714), (11, 2889740), (14, 2270510), (20, 1589357), (22, 1444870), (28, 1135255), (35, 908204), (44, 722435), (55, 577948), (70, 454102), (77, 412820), (110, 288974), (140, 227051), (154, 206410), (220, 144487), (308, 103205), (385, 82564), (770, 41282), (1540, 20641)]