161920120

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{39301}}^1$

素因数の和:39415

約数の個数: 32

約数和(自身を含む): 367866720

約数和(自身を除く): 205946600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 39301, 78602, 157204, 196505, 314408, 393010, 786020, 1572040, 4048003, 8096006, 16192012, 20240015, 32384024, 40480030, 80960060, 161920120]

約数ペア:

[(1, 161920120), (2, 80960060), (4, 40480030), (5, 32384024), (8, 20240015), (10, 16192012), (20, 8096006), (40, 4048003), (103, 1572040), (206, 786020), (412, 393010), (515, 314408), (824, 196505), (1030, 157204), (2060, 78602), (4120, 39301)]