1320779990

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1008229}}^1$

素因数の和:1008367

約数の個数: 16

約数和(自身を含む): 2395554480

約数和(自身を除く): 1074774490

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 1008229, 2016458, 5041145, 10082290, 132077999, 264155998, 660389995, 1320779990]

約数ペア:

[(1, 1320779990), (2, 660389995), (5, 264155998), (10, 132077999), (131, 10082290), (262, 5041145), (655, 2016458), (1310, 1008229)]