1973980

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{431}}^1$

素因数の和:669

約数の個数: 24

約数和(自身を含む): 4173120

約数和(自身を除く): 2199140

約数列:

[1, 2, 4, 5, 10, 20, 229, 431, 458, 862, 916, 1145, 1724, 2155, 2290, 4310, 4580, 8620, 98699, 197398, 394796, 493495, 986990, 1973980]

約数ペア:

[(1, 1973980), (2, 986990), (4, 493495), (5, 394796), (10, 197398), (20, 98699), (229, 8620), (431, 4580), (458, 4310), (862, 2290), (916, 2155), (1145, 1724)]