20557632844

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{89657}}^1$

素因数の和:90118

約数の個数: 48

約数和(自身を含む): 43380126720

約数和(自身を除く): 22822493876

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 431, 532, 862, 1724, 3017, 6034, 8189, 12068, 16378, 32756, 57323, 89657, 114646, 179314, 229292, 358628, 627599, 1255198, 1703483, 2510396, 3406966, 6813932, 11924381, 23848762, 38642167, 47697524, 77284334, 154568668, 270495169, 540990338, 734201173, 1081980676, 1468402346, 2936804692, 5139408211, 10278816422, 20557632844]

約数ペア:

[(1, 20557632844), (2, 10278816422), (4, 5139408211), (7, 2936804692), (14, 1468402346), (19, 1081980676), (28, 734201173), (38, 540990338), (76, 270495169), (133, 154568668), (266, 77284334), (431, 47697524), (532, 38642167), (862, 23848762), (1724, 11924381), (3017, 6813932), (6034, 3406966), (8189, 2510396), (12068, 1703483), (16378, 1255198), (32756, 627599), (57323, 358628), (89657, 229292), (114646, 179314)]