639370

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3761}}^1$

素因数の和:3785

約数の個数: 16

約数和(自身を含む): 1218888

約数和(自身を除く): 579518

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 3761, 7522, 18805, 37610, 63937, 127874, 319685, 639370]

約数ペア:

[(1, 639370), (2, 319685), (5, 127874), (10, 63937), (17, 37610), (34, 18805), (85, 7522), (170, 3761)]