209968216

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{277}}^1\times {\mathrm{2311}}^1$

素因数の和:2635

約数の個数: 32

約数和(自身を含む): 404923680

約数和(自身を除く): 194955464

約数列:

[1, 2, 4, 8, 41, 82, 164, 277, 328, 554, 1108, 2216, 2311, 4622, 9244, 11357, 18488, 22714, 45428, 90856, 94751, 189502, 379004, 640147, 758008, 1280294, 2560588, 5121176, 26246027, 52492054, 104984108, 209968216]

約数ペア:

[(1, 209968216), (2, 104984108), (4, 52492054), (8, 26246027), (41, 5121176), (82, 2560588), (164, 1280294), (277, 758008), (328, 640147), (554, 379004), (1108, 189502), (2216, 94751), (2311, 90856), (4622, 45428), (9244, 22714), (11357, 18488)]