279233840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{205319}}^1$

素因数の和:205349

約数の個数: 40

約数和(自身を含む): 687411360

約数和(自身を除く): 408177520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 205319, 410638, 821276, 1026595, 1642552, 2053190, 3285104, 3490423, 4106380, 6980846, 8212760, 13961692, 16425520, 17452115, 27923384, 34904230, 55846768, 69808460, 139616920, 279233840]

約数ペア:

[(1, 279233840), (2, 139616920), (4, 69808460), (5, 55846768), (8, 34904230), (10, 27923384), (16, 17452115), (17, 16425520), (20, 13961692), (34, 8212760), (40, 6980846), (68, 4106380), (80, 3490423), (85, 3285104), (136, 2053190), (170, 1642552), (272, 1026595), (340, 821276), (680, 410638), (1360, 205319)]