205807390

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{199813}}^1$

素因数の和:199923

約数の個数: 16

約数和(自身を含む): 374051808

約数和(自身を除く): 168244418

約数列:

[1, 2, 5, 10, 103, 206, 515, 1030, 199813, 399626, 999065, 1998130, 20580739, 41161478, 102903695, 205807390]

約数ペア:

[(1, 205807390), (2, 102903695), (5, 41161478), (10, 20580739), (103, 1998130), (206, 999065), (515, 399626), (1030, 199813)]