89764780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{991}}^1$

素因数の和:1654

約数の個数: 48

約数和(自身を含む): 215986176

約数和(自身を除く): 126221396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 647, 991, 1294, 1982, 2588, 3235, 3964, 4529, 4955, 6470, 6937, 9058, 9910, 12940, 13874, 18116, 19820, 22645, 27748, 34685, 45290, 69370, 90580, 138740, 641177, 1282354, 2564708, 3205885, 4488239, 6411770, 8976478, 12823540, 17952956, 22441195, 44882390, 89764780]

約数ペア:

[(1, 89764780), (2, 44882390), (4, 22441195), (5, 17952956), (7, 12823540), (10, 8976478), (14, 6411770), (20, 4488239), (28, 3205885), (35, 2564708), (70, 1282354), (140, 641177), (647, 138740), (991, 90580), (1294, 69370), (1982, 45290), (2588, 34685), (3235, 27748), (3964, 22645), (4529, 19820), (4955, 18116), (6470, 13874), (6937, 12940), (9058, 9910)]