25847920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{457}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 69513408

約数和(自身を除く): 43665488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 101, 112, 140, 202, 280, 404, 457, 505, 560, 707, 808, 914, 1010, 1414, 1616, 1828, 2020, 2285, 2828, 3199, 3535, 3656, 4040, 4570, 5656, 6398, 7070, 7312, 8080, 9140, 11312, 12796, 14140, 15995, 18280, 25592, 28280, 31990, 36560, 46157, 51184, 56560, 63980, 92314, 127960, 184628, 230785, 255920, 323099, 369256, 461570, 646198, 738512, 923140, 1292396, 1615495, 1846280, 2584792, 3230990, 3692560, 5169584, 6461980, 12923960, 25847920]

約数ペア:

[(1, 25847920), (2, 12923960), (4, 6461980), (5, 5169584), (7, 3692560), (8, 3230990), (10, 2584792), (14, 1846280), (16, 1615495), (20, 1292396), (28, 923140), (35, 738512), (40, 646198), (56, 461570), (70, 369256), (80, 323099), (101, 255920), (112, 230785), (140, 184628), (202, 127960), (280, 92314), (404, 63980), (457, 56560), (505, 51184), (560, 46157), (707, 36560), (808, 31990), (914, 28280), (1010, 25592), (1414, 18280), (1616, 15995), (1828, 14140), (2020, 12796), (2285, 11312), (2828, 9140), (3199, 8080), (3535, 7312), (3656, 7070), (4040, 6398), (4570, 5656)]