213804955

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 329995008

約数和(自身を除く): 116190053

約数列:

[1, 5, 7, 13, 35, 41, 65, 73, 91, 157, 205, 287, 365, 455, 511, 533, 785, 949, 1099, 1435, 2041, 2555, 2665, 2993, 3731, 4745, 5495, 6437, 6643, 10205, 11461, 14287, 14965, 18655, 20951, 32185, 33215, 38909, 45059, 57305, 71435, 80227, 83681, 104755, 148993, 194545, 225295, 272363, 401135, 418405, 469901, 585767, 744965, 1042951, 1361815, 2349505, 2928835, 3289307, 5214755, 6108713, 16446535, 30543565, 42760991, 213804955]

約数ペア:

[(1, 213804955), (5, 42760991), (7, 30543565), (13, 16446535), (35, 6108713), (41, 5214755), (65, 3289307), (73, 2928835), (91, 2349505), (157, 1361815), (205, 1042951), (287, 744965), (365, 585767), (455, 469901), (511, 418405), (533, 401135), (785, 272363), (949, 225295), (1099, 194545), (1435, 148993), (2041, 104755), (2555, 83681), (2665, 80227), (2993, 71435), (3731, 57305), (4745, 45059), (5495, 38909), (6437, 33215), (6643, 32185), (10205, 20951), (11461, 18655), (14287, 14965)]