39808020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{94781}}^1$

素因数の和:94800

約数の個数: 48

約数和(自身を含む): 127387008

約数和(自身を除く): 87578988

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, 94781, 189562, 284343, 379124, 473905, 568686, 663467, 947810, 1137372, 1326934, 1421715, 1895620, 1990401, 2653868, 2843430, 3317335, 3980802, 5686860, 6634670, 7961604, 9952005, 13269340, 19904010, 39808020]

約数ペア:

[(1, 39808020), (2, 19904010), (3, 13269340), (4, 9952005), (5, 7961604), (6, 6634670), (7, 5686860), (10, 3980802), (12, 3317335), (14, 2843430), (15, 2653868), (20, 1990401), (21, 1895620), (28, 1421715), (30, 1326934), (35, 1137372), (42, 947810), (60, 663467), (70, 568686), (84, 473905), (105, 379124), (140, 284343), (210, 189562), (420, 94781)]