20739968120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{12058121}}^1$

素因数の和:12058175

約数の個数: 32

約数和(自身を含む): 47750163120

約数和(自身を除く): 27010195000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 12058121, 24116242, 48232484, 60290605, 96464968, 120581210, 241162420, 482324840, 518499203, 1036998406, 2073996812, 2592496015, 4147993624, 5184992030, 10369984060, 20739968120]

約数ペア:

[(1, 20739968120), (2, 10369984060), (4, 5184992030), (5, 4147993624), (8, 2592496015), (10, 2073996812), (20, 1036998406), (40, 518499203), (43, 482324840), (86, 241162420), (172, 120581210), (215, 96464968), (344, 60290605), (430, 48232484), (860, 24116242), (1720, 12058121)]