19740400

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{2903}}^1$

素因数の和:2938

約数の個数: 60

約数和(自身を含む): 50233392

約数和(自身を除く): 30492992

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 200, 272, 340, 400, 425, 680, 850, 1360, 1700, 2903, 3400, 5806, 6800, 11612, 14515, 23224, 29030, 46448, 49351, 58060, 72575, 98702, 116120, 145150, 197404, 232240, 246755, 290300, 394808, 493510, 580600, 789616, 987020, 1161200, 1233775, 1974040, 2467550, 3948080, 4935100, 9870200, 19740400]

約数ペア:

[(1, 19740400), (2, 9870200), (4, 4935100), (5, 3948080), (8, 2467550), (10, 1974040), (16, 1233775), (17, 1161200), (20, 987020), (25, 789616), (34, 580600), (40, 493510), (50, 394808), (68, 290300), (80, 246755), (85, 232240), (100, 197404), (136, 145150), (170, 116120), (200, 98702), (272, 72575), (340, 58060), (400, 49351), (425, 46448), (680, 29030), (850, 23224), (1360, 14515), (1700, 11612), (2903, 6800), (3400, 5806)]