19656240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{81901}}^1$

素因数の和:81917

約数の個数: 40

約数和(自身を含む): 60935088

約数和(自身を除く): 41278848

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 81901, 163802, 245703, 327604, 409505, 491406, 655208, 819010, 982812, 1228515, 1310416, 1638020, 1965624, 2457030, 3276040, 3931248, 4914060, 6552080, 9828120, 19656240]

約数ペア:

[(1, 19656240), (2, 9828120), (3, 6552080), (4, 4914060), (5, 3931248), (6, 3276040), (8, 2457030), (10, 1965624), (12, 1638020), (15, 1310416), (16, 1228515), (20, 982812), (24, 819010), (30, 655208), (40, 491406), (48, 409505), (60, 327604), (80, 245703), (120, 163802), (240, 81901)]