164020520

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{141397}}^1$

素因数の和:141437

約数の個数: 32

約数和(自身を含む): 381774600

約数和(自身を除く): 217754080

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 141397, 282794, 565588, 706985, 1131176, 1413970, 2827940, 4100513, 5655880, 8201026, 16402052, 20502565, 32804104, 41005130, 82010260, 164020520]

約数ペア:

[(1, 164020520), (2, 82010260), (4, 41005130), (5, 32804104), (8, 20502565), (10, 16402052), (20, 8201026), (29, 5655880), (40, 4100513), (58, 2827940), (116, 1413970), (145, 1131176), (232, 706985), (290, 565588), (580, 282794), (1160, 141397)]