1993820

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{761}}^1$

素因数の和:901

約数の個数: 24

約数和(自身を含む): 4224528

約数和(自身を除く): 2230708

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 761, 1310, 1522, 2620, 3044, 3805, 7610, 15220, 99691, 199382, 398764, 498455, 996910, 1993820]

約数ペア:

[(1, 1993820), (2, 996910), (4, 498455), (5, 398764), (10, 199382), (20, 99691), (131, 15220), (262, 7610), (524, 3805), (655, 3044), (761, 2620), (1310, 1522)]