20486850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{2239}}^1$

素因数の和:2315

約数の個数: 48

約数和(自身を含む): 51663360

約数和(自身を除く): 31176510

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 61, 75, 122, 150, 183, 305, 366, 610, 915, 1525, 1830, 2239, 3050, 4478, 4575, 6717, 9150, 11195, 13434, 22390, 33585, 55975, 67170, 111950, 136579, 167925, 273158, 335850, 409737, 682895, 819474, 1365790, 2048685, 3414475, 4097370, 6828950, 10243425, 20486850]

約数ペア:

[(1, 20486850), (2, 10243425), (3, 6828950), (5, 4097370), (6, 3414475), (10, 2048685), (15, 1365790), (25, 819474), (30, 682895), (50, 409737), (61, 335850), (75, 273158), (122, 167925), (150, 136579), (183, 111950), (305, 67170), (366, 55975), (610, 33585), (915, 22390), (1525, 13434), (1830, 11195), (2239, 9150), (3050, 6717), (4478, 4575)]