61489240

素因数分解:

$2^3\times 5^1\times {\mathrm{769}}^1\times {\mathrm{1999}}^1$

素因数の和:2779

約数の個数: 32

約数和(自身を含む): 138600000

約数和(自身を除く): 77110760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 769, 1538, 1999, 3076, 3845, 3998, 6152, 7690, 7996, 9995, 15380, 15992, 19990, 30760, 39980, 79960, 1537231, 3074462, 6148924, 7686155, 12297848, 15372310, 30744620, 61489240]

約数ペア:

[(1, 61489240), (2, 30744620), (4, 15372310), (5, 12297848), (8, 7686155), (10, 6148924), (20, 3074462), (40, 1537231), (769, 79960), (1538, 39980), (1999, 30760), (3076, 19990), (3845, 15992), (3998, 15380), (6152, 9995), (7690, 7996)]