19935664

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:218

約数の個数: 80

約数和(自身を含む): 47139840

約数和(自身を除く): 27204176

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 71, 92, 109, 112, 142, 161, 184, 218, 284, 322, 368, 436, 497, 568, 644, 763, 872, 994, 1136, 1288, 1526, 1633, 1744, 1988, 2507, 2576, 3052, 3266, 3976, 5014, 6104, 6532, 7739, 7952, 10028, 11431, 12208, 13064, 15478, 17549, 20056, 22862, 26128, 30956, 35098, 40112, 45724, 54173, 61912, 70196, 91448, 108346, 123824, 140392, 177997, 182896, 216692, 280784, 355994, 433384, 711988, 866768, 1245979, 1423976, 2491958, 2847952, 4983916, 9967832, 19935664]

約数ペア:

[(1, 19935664), (2, 9967832), (4, 4983916), (7, 2847952), (8, 2491958), (14, 1423976), (16, 1245979), (23, 866768), (28, 711988), (46, 433384), (56, 355994), (71, 280784), (92, 216692), (109, 182896), (112, 177997), (142, 140392), (161, 123824), (184, 108346), (218, 91448), (284, 70196), (322, 61912), (368, 54173), (436, 45724), (497, 40112), (568, 35098), (644, 30956), (763, 26128), (872, 22862), (994, 20056), (1136, 17549), (1288, 15478), (1526, 13064), (1633, 12208), (1744, 11431), (1988, 10028), (2507, 7952), (2576, 7739), (3052, 6532), (3266, 6104), (3976, 5014)]