2019476720

素因数分解:

$2^4\times 5^1\times {\mathrm{1237}}^1\times {\mathrm{20407}}^1$

素因数の和:21657

約数の個数: 40

約数和(自身を含む): 4699309344

約数和(自身を除く): 2679832624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1237, 2474, 4948, 6185, 9896, 12370, 19792, 20407, 24740, 40814, 49480, 81628, 98960, 102035, 163256, 204070, 326512, 408140, 816280, 1632560, 25243459, 50486918, 100973836, 126217295, 201947672, 252434590, 403895344, 504869180, 1009738360, 2019476720]

約数ペア:

[(1, 2019476720), (2, 1009738360), (4, 504869180), (5, 403895344), (8, 252434590), (10, 201947672), (16, 126217295), (20, 100973836), (40, 50486918), (80, 25243459), (1237, 1632560), (2474, 816280), (4948, 408140), (6185, 326512), (9896, 204070), (12370, 163256), (19792, 102035), (20407, 98960), (24740, 81628), (40814, 49480)]