1021796120

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{63703}}^1$

素因数の和:64115

約数の個数: 32

約数和(自身を含む): 2304810720

約数和(自身を除く): 1283014600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 8020, 16040, 63703, 127406, 254812, 318515, 509624, 637030, 1274060, 2548120, 25544903, 51089806, 102179612, 127724515, 204359224, 255449030, 510898060, 1021796120]

約数ペア:

[(1, 1021796120), (2, 510898060), (4, 255449030), (5, 204359224), (8, 127724515), (10, 102179612), (20, 51089806), (40, 25544903), (401, 2548120), (802, 1274060), (1604, 637030), (2005, 509624), (3208, 318515), (4010, 254812), (8020, 127406), (16040, 63703)]