86824520

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{5413}}^1$

素因数の和:5825

約数の個数: 32

約数和(自身を含む): 195878520

約数和(自身を除く): 109054000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 5413, 8020, 10826, 16040, 21652, 27065, 43304, 54130, 108260, 216520, 2170613, 4341226, 8682452, 10853065, 17364904, 21706130, 43412260, 86824520]

約数ペア:

[(1, 86824520), (2, 43412260), (4, 21706130), (5, 17364904), (8, 10853065), (10, 8682452), (20, 4341226), (40, 2170613), (401, 216520), (802, 108260), (1604, 54130), (2005, 43304), (3208, 27065), (4010, 21652), (5413, 16040), (8020, 10826)]