20277712

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{733}}^1$

素因数の和:780

約数の個数: 80

約数和(自身を含む): 50968960

約数和(自身を除く): 30691248

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 38, 52, 56, 76, 91, 104, 112, 133, 152, 182, 208, 247, 266, 304, 364, 494, 532, 728, 733, 988, 1064, 1456, 1466, 1729, 1976, 2128, 2932, 3458, 3952, 5131, 5864, 6916, 9529, 10262, 11728, 13832, 13927, 19058, 20524, 27664, 27854, 38116, 41048, 55708, 66703, 76232, 82096, 97489, 111416, 133406, 152464, 181051, 194978, 222832, 266812, 362102, 389956, 533624, 724204, 779912, 1067248, 1267357, 1448408, 1559824, 2534714, 2896816, 5069428, 10138856, 20277712]

約数ペア:

[(1, 20277712), (2, 10138856), (4, 5069428), (7, 2896816), (8, 2534714), (13, 1559824), (14, 1448408), (16, 1267357), (19, 1067248), (26, 779912), (28, 724204), (38, 533624), (52, 389956), (56, 362102), (76, 266812), (91, 222832), (104, 194978), (112, 181051), (133, 152464), (152, 133406), (182, 111416), (208, 97489), (247, 82096), (266, 76232), (304, 66703), (364, 55708), (494, 41048), (532, 38116), (728, 27854), (733, 27664), (988, 20524), (1064, 19058), (1456, 13927), (1466, 13832), (1729, 11728), (1976, 10262), (2128, 9529), (2932, 6916), (3458, 5864), (3952, 5131)]