20659570

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{167}}^1$

素因数の和:402

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 17442830

約数列:

[1, 2, 5, 10, 89, 139, 167, 178, 278, 334, 445, 695, 835, 890, 1390, 1670, 12371, 14863, 23213, 24742, 29726, 46426, 61855, 74315, 116065, 123710, 148630, 232130, 2065957, 4131914, 10329785, 20659570]

約数ペア:

[(1, 20659570), (2, 10329785), (5, 4131914), (10, 2065957), (89, 232130), (139, 148630), (167, 123710), (178, 116065), (278, 74315), (334, 61855), (445, 46426), (695, 29726), (835, 24742), (890, 23213), (1390, 14863), (1670, 12371)]