20488020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{48781}}^1$

素因数の和:48800

約数の個数: 48

約数和(自身を含む): 65563008

約数和(自身を除く): 45074988

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 48781, 97562, 146343, 195124, 243905, 292686, 341467, 487810, 585372, 682934, 731715, 975620, 1024401, 1365868, 1463430, 1707335, 2048802, 2926860, 3414670, 4097604, 5122005, 6829340, 10244010, 20488020]

約数ペア:

[(1, 20488020), (2, 10244010), (3, 6829340), (4, 5122005), (5, 4097604), (6, 3414670), (7, 2926860), (10, 2048802), (12, 1707335), (14, 1463430), (15, 1365868), (20, 1024401), (21, 975620), (28, 731715), (30, 682934), (35, 585372), (42, 487810), (60, 341467), (70, 292686), (84, 243905), (105, 195124), (140, 146343), (210, 97562), (420, 48781)]