28040140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{82471}}^1$

素因数の和:82497

約数の個数: 24

約数和(自身を含む): 62348832

約数和(自身を除く): 34308692

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 82471, 164942, 329884, 412355, 824710, 1402007, 1649420, 2804014, 5608028, 7010035, 14020070, 28040140]

約数ペア:

[(1, 28040140), (2, 14020070), (4, 7010035), (5, 5608028), (10, 2804014), (17, 1649420), (20, 1402007), (34, 824710), (68, 412355), (85, 329884), (170, 164942), (340, 82471)]