990706654

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{29947}}^1$

素因数の和:30112

約数の個数: 32

約数和(自身を含む): 1811255040

約数和(自身を除く): 820548386

約数列:

[1, 2, 7, 14, 17, 34, 119, 139, 238, 278, 973, 1946, 2363, 4726, 16541, 29947, 33082, 59894, 209629, 419258, 509099, 1018198, 3563693, 4162633, 7127386, 8325266, 29138431, 58276862, 70764761, 141529522, 495353327, 990706654]

約数ペア:

[(1, 990706654), (2, 495353327), (7, 141529522), (14, 70764761), (17, 58276862), (34, 29138431), (119, 8325266), (139, 7127386), (238, 4162633), (278, 3563693), (973, 1018198), (1946, 509099), (2363, 419258), (4726, 209629), (16541, 59894), (29947, 33082)]