20686128

素因数分解:

$2^4\times 3^1\times {\mathrm{181}}^1\times {\mathrm{2381}}^1$

素因数の和:2573

約数の個数: 40

約数和(自身を含む): 53756976

約数和(自身を除く): 33070848

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 181, 362, 543, 724, 1086, 1448, 2172, 2381, 2896, 4344, 4762, 7143, 8688, 9524, 14286, 19048, 28572, 38096, 57144, 114288, 430961, 861922, 1292883, 1723844, 2585766, 3447688, 5171532, 6895376, 10343064, 20686128]

約数ペア:

[(1, 20686128), (2, 10343064), (3, 6895376), (4, 5171532), (6, 3447688), (8, 2585766), (12, 1723844), (16, 1292883), (24, 861922), (48, 430961), (181, 114288), (362, 57144), (543, 38096), (724, 28572), (1086, 19048), (1448, 14286), (2172, 9524), (2381, 8688), (2896, 7143), (4344, 4762)]