78631420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{1229}}^1$

素因数の和:1702

約数の個数: 48

約数和(自身を含む): 189282240

約数和(自身を除く): 110650820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 457, 914, 1229, 1828, 2285, 2458, 3199, 4570, 4916, 6145, 6398, 8603, 9140, 12290, 12796, 15995, 17206, 24580, 31990, 34412, 43015, 63980, 86030, 172060, 561653, 1123306, 2246612, 2808265, 3931571, 5616530, 7863142, 11233060, 15726284, 19657855, 39315710, 78631420]

約数ペア:

[(1, 78631420), (2, 39315710), (4, 19657855), (5, 15726284), (7, 11233060), (10, 7863142), (14, 5616530), (20, 3931571), (28, 2808265), (35, 2246612), (70, 1123306), (140, 561653), (457, 172060), (914, 86030), (1229, 63980), (1828, 43015), (2285, 34412), (2458, 31990), (3199, 24580), (4570, 17206), (4916, 15995), (6145, 12796), (6398, 12290), (8603, 9140)]