221444405

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 340139520

約数和(自身を除く): 118695115

約数列:

[1, 5, 7, 13, 35, 59, 65, 73, 91, 113, 295, 365, 413, 455, 511, 565, 767, 791, 949, 1469, 2065, 2555, 3835, 3955, 4307, 4745, 5369, 6643, 6667, 7345, 8249, 10283, 21535, 26845, 30149, 33215, 33335, 41245, 46669, 51415, 55991, 57743, 86671, 107237, 150745, 233345, 279955, 288715, 391937, 433355, 486691, 536185, 606697, 750659, 1959685, 2433455, 3033485, 3406837, 3753295, 6326983, 17034185, 31634915, 44288881, 221444405]

約数ペア:

[(1, 221444405), (5, 44288881), (7, 31634915), (13, 17034185), (35, 6326983), (59, 3753295), (65, 3406837), (73, 3033485), (91, 2433455), (113, 1959685), (295, 750659), (365, 606697), (413, 536185), (455, 486691), (511, 433355), (565, 391937), (767, 288715), (791, 279955), (949, 233345), (1469, 150745), (2065, 107237), (2555, 86671), (3835, 57743), (3955, 55991), (4307, 51415), (4745, 46669), (5369, 41245), (6643, 33335), (6667, 33215), (7345, 30149), (8249, 26845), (10283, 21535)]