128997904

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67751}}^1$

素因数の和:67783

約数の個数: 40

約数和(自身を含む): 302444928

約数和(自身を除く): 173447024

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 67751, 135502, 271004, 474257, 542008, 948514, 1084016, 1151767, 1897028, 2303534, 3794056, 4607068, 7588112, 8062369, 9214136, 16124738, 18428272, 32249476, 64498952, 128997904]

約数ペア:

[(1, 128997904), (2, 64498952), (4, 32249476), (7, 18428272), (8, 16124738), (14, 9214136), (16, 8062369), (17, 7588112), (28, 4607068), (34, 3794056), (56, 2303534), (68, 1897028), (112, 1151767), (119, 1084016), (136, 948514), (238, 542008), (272, 474257), (476, 271004), (952, 135502), (1904, 67751)]