120990160

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{16993}}^1$

素因数の和:17095

約数の個数: 40

約数和(自身を含む): 284479560

約数和(自身を除く): 163489400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 16993, 33986, 67972, 84965, 135944, 169930, 271888, 339860, 679720, 1359440, 1512377, 3024754, 6049508, 7561885, 12099016, 15123770, 24198032, 30247540, 60495080, 120990160]

約数ペア:

[(1, 120990160), (2, 60495080), (4, 30247540), (5, 24198032), (8, 15123770), (10, 12099016), (16, 7561885), (20, 6049508), (40, 3024754), (80, 1512377), (89, 1359440), (178, 679720), (356, 339860), (445, 271888), (712, 169930), (890, 135944), (1424, 84965), (1780, 67972), (3560, 33986), (7120, 16993)]