281330335

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{4421}}^1$

素因数の和:4539

約数の個数: 32

約数和(自身を含む): 401163840

約数和(自身を除く): 119833505

約数列:

[1, 5, 11, 13, 55, 65, 89, 143, 445, 715, 979, 1157, 4421, 4895, 5785, 12727, 22105, 48631, 57473, 63635, 243155, 287365, 393469, 632203, 1967345, 3161015, 4328159, 5115097, 21640795, 25575485, 56266067, 281330335]

約数ペア:

[(1, 281330335), (5, 56266067), (11, 25575485), (13, 21640795), (55, 5115097), (65, 4328159), (89, 3161015), (143, 1967345), (445, 632203), (715, 393469), (979, 287365), (1157, 243155), (4421, 63635), (4895, 57473), (5785, 48631), (12727, 22105)]