990028

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:337

約数の個数: 24

約数和(自身を含む): 1897280

約数和(自身を除く): 907252

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 241, 316, 482, 964, 1027, 2054, 3133, 4108, 6266, 12532, 19039, 38078, 76156, 247507, 495014, 990028]

約数ペア:

[(1, 990028), (2, 495014), (4, 247507), (13, 76156), (26, 38078), (52, 19039), (79, 12532), (158, 6266), (241, 4108), (316, 3133), (482, 2054), (964, 1027)]