2016857720

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{261251}}^1$

素因数の和:261455

約数の個数: 32

約数和(自身を含む): 4561459920

約数和(自身を除く): 2544602200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 3860, 7720, 261251, 522502, 1045004, 1306255, 2090008, 2612510, 5225020, 10450040, 50421443, 100842886, 201685772, 252107215, 403371544, 504214430, 1008428860, 2016857720]

約数ペア:

[(1, 2016857720), (2, 1008428860), (4, 504214430), (5, 403371544), (8, 252107215), (10, 201685772), (20, 100842886), (40, 50421443), (193, 10450040), (386, 5225020), (772, 2612510), (965, 2090008), (1544, 1306255), (1930, 1045004), (3860, 522502), (7720, 261251)]