204521135

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:372

約数の個数: 64

約数和(自身を含む): 323834112

約数和(自身を除く): 119312977

約数列:

[1, 5, 7, 13, 17, 35, 65, 85, 91, 119, 137, 193, 221, 455, 595, 685, 959, 965, 1105, 1351, 1547, 1781, 2329, 2509, 3281, 4795, 6755, 7735, 8905, 11645, 12467, 12545, 16303, 16405, 17563, 22967, 26441, 30277, 42653, 62335, 81515, 87815, 114835, 132205, 151385, 185087, 211939, 213265, 298571, 343733, 449497, 925435, 1059695, 1492855, 1718665, 2247485, 2406131, 3146479, 5843461, 12030655, 15732395, 29217305, 40904227, 204521135]

約数ペア:

[(1, 204521135), (5, 40904227), (7, 29217305), (13, 15732395), (17, 12030655), (35, 5843461), (65, 3146479), (85, 2406131), (91, 2247485), (119, 1718665), (137, 1492855), (193, 1059695), (221, 925435), (455, 449497), (595, 343733), (685, 298571), (959, 213265), (965, 211939), (1105, 185087), (1351, 151385), (1547, 132205), (1781, 114835), (2329, 87815), (2509, 81515), (3281, 62335), (4795, 42653), (6755, 30277), (7735, 26441), (8905, 22967), (11645, 17563), (12467, 16405), (12545, 16303)]