31915100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{359}}^1$

素因数の和:507

約数の個数: 72

約数和(自身を含む): 79994880

約数和(自身を除く): 48079780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 127, 140, 175, 254, 350, 359, 508, 635, 700, 718, 889, 1270, 1436, 1778, 1795, 2513, 2540, 3175, 3556, 3590, 4445, 5026, 6350, 7180, 8890, 8975, 10052, 12565, 12700, 17780, 17950, 22225, 25130, 35900, 44450, 45593, 50260, 62825, 88900, 91186, 125650, 182372, 227965, 251300, 319151, 455930, 638302, 911860, 1139825, 1276604, 1595755, 2279650, 3191510, 4559300, 6383020, 7978775, 15957550, 31915100]

約数ペア:

[(1, 31915100), (2, 15957550), (4, 7978775), (5, 6383020), (7, 4559300), (10, 3191510), (14, 2279650), (20, 1595755), (25, 1276604), (28, 1139825), (35, 911860), (50, 638302), (70, 455930), (100, 319151), (127, 251300), (140, 227965), (175, 182372), (254, 125650), (350, 91186), (359, 88900), (508, 62825), (635, 50260), (700, 45593), (718, 44450), (889, 35900), (1270, 25130), (1436, 22225), (1778, 17950), (1795, 17780), (2513, 12700), (2540, 12565), (3175, 10052), (3556, 8975), (3590, 8890), (4445, 7180), (5026, 6350)]