20209014

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:343

約数の個数: 80

約数和(自身を含む): 52690176

約数和(自身を除く): 32481162

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 71, 81, 126, 142, 162, 189, 213, 251, 378, 426, 497, 502, 567, 639, 753, 994, 1134, 1278, 1491, 1506, 1757, 1917, 2259, 2982, 3514, 3834, 4473, 4518, 5271, 5751, 6777, 8946, 10542, 11502, 13419, 13554, 15813, 17821, 20331, 26838, 31626, 35642, 40257, 40662, 47439, 53463, 80514, 94878, 106926, 124747, 142317, 160389, 249494, 284634, 320778, 374241, 481167, 748482, 962334, 1122723, 1443501, 2245446, 2887002, 3368169, 6736338, 10104507, 20209014]

約数ペア:

[(1, 20209014), (2, 10104507), (3, 6736338), (6, 3368169), (7, 2887002), (9, 2245446), (14, 1443501), (18, 1122723), (21, 962334), (27, 748482), (42, 481167), (54, 374241), (63, 320778), (71, 284634), (81, 249494), (126, 160389), (142, 142317), (162, 124747), (189, 106926), (213, 94878), (251, 80514), (378, 53463), (426, 47439), (497, 40662), (502, 40257), (567, 35642), (639, 31626), (753, 26838), (994, 20331), (1134, 17821), (1278, 15813), (1491, 13554), (1506, 13419), (1757, 11502), (1917, 10542), (2259, 8946), (2982, 6777), (3514, 5751), (3834, 5271), (4473, 4518)]