2105339980

素因数分解:

$2^2\times 5^1\times {\mathrm{1553}}^1\times {\mathrm{67783}}^1$

素因数の和:69345

約数の個数: 24

約数和(自身を含む): 4424126112

約数和(自身を除く): 2318786132

約数列:

[1, 2, 4, 5, 10, 20, 1553, 3106, 6212, 7765, 15530, 31060, 67783, 135566, 271132, 338915, 677830, 1355660, 105266999, 210533998, 421067996, 526334995, 1052669990, 2105339980]

約数ペア:

[(1, 2105339980), (2, 1052669990), (4, 526334995), (5, 421067996), (10, 210533998), (20, 105266999), (1553, 1355660), (3106, 677830), (6212, 338915), (7765, 271132), (15530, 135566), (31060, 67783)]