27938140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{82171}}^1$

素因数の和:82197

約数の個数: 24

約数和(自身を含む): 62122032

約数和(自身を除く): 34183892

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 82171, 164342, 328684, 410855, 821710, 1396907, 1643420, 2793814, 5587628, 6984535, 13969070, 27938140]

約数ペア:

[(1, 27938140), (2, 13969070), (4, 6984535), (5, 5587628), (10, 2793814), (17, 1643420), (20, 1396907), (34, 821710), (68, 410855), (85, 328684), (170, 164342), (340, 82171)]