31381700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{353}}^1$

素因数の和:501

約数の個数: 72

約数和(自身を含む): 78661632

約数和(自身を除く): 47279932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 127, 140, 175, 254, 350, 353, 508, 635, 700, 706, 889, 1270, 1412, 1765, 1778, 2471, 2540, 3175, 3530, 3556, 4445, 4942, 6350, 7060, 8825, 8890, 9884, 12355, 12700, 17650, 17780, 22225, 24710, 35300, 44450, 44831, 49420, 61775, 88900, 89662, 123550, 179324, 224155, 247100, 313817, 448310, 627634, 896620, 1120775, 1255268, 1569085, 2241550, 3138170, 4483100, 6276340, 7845425, 15690850, 31381700]

約数ペア:

[(1, 31381700), (2, 15690850), (4, 7845425), (5, 6276340), (7, 4483100), (10, 3138170), (14, 2241550), (20, 1569085), (25, 1255268), (28, 1120775), (35, 896620), (50, 627634), (70, 448310), (100, 313817), (127, 247100), (140, 224155), (175, 179324), (254, 123550), (350, 89662), (353, 88900), (508, 61775), (635, 49420), (700, 44831), (706, 44450), (889, 35300), (1270, 24710), (1412, 22225), (1765, 17780), (1778, 17650), (2471, 12700), (2540, 12355), (3175, 9884), (3530, 8890), (3556, 8825), (4445, 7060), (4942, 6350)]