203440405

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{457}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 300741120

約数和(自身を除く): 97300715

約数列:

[1, 5, 7, 23, 35, 49, 79, 115, 161, 245, 395, 457, 553, 805, 1127, 1817, 2285, 2765, 3199, 3871, 5635, 9085, 10511, 12719, 15995, 19355, 22393, 36103, 52555, 63595, 73577, 89033, 111965, 180515, 252721, 367885, 445165, 515039, 830369, 1263605, 1769047, 2575195, 4151845, 5812583, 8845235, 29062915, 40688081, 203440405]

約数ペア:

[(1, 203440405), (5, 40688081), (7, 29062915), (23, 8845235), (35, 5812583), (49, 4151845), (79, 2575195), (115, 1769047), (161, 1263605), (245, 830369), (395, 515039), (457, 445165), (553, 367885), (805, 252721), (1127, 180515), (1817, 111965), (2285, 89033), (2765, 73577), (3199, 63595), (3871, 52555), (5635, 36103), (9085, 22393), (10511, 19355), (12719, 15995)]