78185975

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{641}}^1$

素因数の和:716

約数の個数: 48

約数和(自身を含む): 120367296

約数和(自身を除く): 42181321

約数列:

[1, 5, 7, 17, 25, 35, 41, 85, 119, 175, 205, 287, 425, 595, 641, 697, 1025, 1435, 2975, 3205, 3485, 4487, 4879, 7175, 10897, 16025, 17425, 22435, 24395, 26281, 54485, 76279, 112175, 121975, 131405, 183967, 272425, 381395, 446777, 657025, 919835, 1906975, 2233885, 3127439, 4599175, 11169425, 15637195, 78185975]

約数ペア:

[(1, 78185975), (5, 15637195), (7, 11169425), (17, 4599175), (25, 3127439), (35, 2233885), (41, 1906975), (85, 919835), (119, 657025), (175, 446777), (205, 381395), (287, 272425), (425, 183967), (595, 131405), (641, 121975), (697, 112175), (1025, 76279), (1435, 54485), (2975, 26281), (3205, 24395), (3485, 22435), (4487, 17425), (4879, 16025), (7175, 10897)]