31142440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{15889}}^1$

素因数の和:15914

約数の個数: 48

約数和(自身を含む): 81515700

約数和(自身を除く): 50373260

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 15889, 31778, 63556, 79445, 111223, 127112, 158890, 222446, 317780, 444892, 556115, 635560, 778561, 889784, 1112230, 1557122, 2224460, 3114244, 3892805, 4448920, 6228488, 7785610, 15571220, 31142440]

約数ペア:

[(1, 31142440), (2, 15571220), (4, 7785610), (5, 6228488), (7, 4448920), (8, 3892805), (10, 3114244), (14, 2224460), (20, 1557122), (28, 1112230), (35, 889784), (40, 778561), (49, 635560), (56, 556115), (70, 444892), (98, 317780), (140, 222446), (196, 158890), (245, 127112), (280, 111223), (392, 79445), (490, 63556), (980, 31778), (1960, 15889)]