25205840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28643}}^1$

素因数の和:28667

約数の個数: 40

約数和(自身を含む): 63933408

約数和(自身を除く): 38727568

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 28643, 57286, 114572, 143215, 229144, 286430, 315073, 458288, 572860, 630146, 1145720, 1260292, 1575365, 2291440, 2520584, 3150730, 5041168, 6301460, 12602920, 25205840]

約数ペア:

[(1, 25205840), (2, 12602920), (4, 6301460), (5, 5041168), (8, 3150730), (10, 2520584), (11, 2291440), (16, 1575365), (20, 1260292), (22, 1145720), (40, 630146), (44, 572860), (55, 458288), (80, 315073), (88, 286430), (110, 229144), (176, 143215), (220, 114572), (440, 57286), (880, 28643)]