78661975

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 119510208

約数和(自身を除く): 40848233

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 137, 175, 193, 425, 595, 685, 959, 965, 1351, 2329, 2975, 3281, 3425, 4795, 4825, 6755, 11645, 16303, 16405, 22967, 23975, 26441, 33775, 58225, 81515, 82025, 114835, 132205, 185087, 407575, 449497, 574175, 661025, 925435, 2247485, 3146479, 4627175, 11237425, 15732395, 78661975]

約数ペア:

[(1, 78661975), (5, 15732395), (7, 11237425), (17, 4627175), (25, 3146479), (35, 2247485), (85, 925435), (119, 661025), (137, 574175), (175, 449497), (193, 407575), (425, 185087), (595, 132205), (685, 114835), (959, 82025), (965, 81515), (1351, 58225), (2329, 33775), (2975, 26441), (3281, 23975), (3425, 22967), (4795, 16405), (4825, 16303), (6755, 11645)]