31142860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1229}}^1$

素因数の和:1426

約数の個数: 48

約数和(自身を含む): 75216960

約数和(自身を除く): 44074100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 181, 362, 724, 905, 1229, 1267, 1810, 2458, 2534, 3620, 4916, 5068, 6145, 6335, 8603, 12290, 12670, 17206, 24580, 25340, 34412, 43015, 86030, 172060, 222449, 444898, 889796, 1112245, 1557143, 2224490, 3114286, 4448980, 6228572, 7785715, 15571430, 31142860]

約数ペア:

[(1, 31142860), (2, 15571430), (4, 7785715), (5, 6228572), (7, 4448980), (10, 3114286), (14, 2224490), (20, 1557143), (28, 1112245), (35, 889796), (70, 444898), (140, 222449), (181, 172060), (362, 86030), (724, 43015), (905, 34412), (1229, 25340), (1267, 24580), (1810, 17206), (2458, 12670), (2534, 12290), (3620, 8603), (4916, 6335), (5068, 6145)]