87961020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{209431}}^1$

素因数の和:209450

約数の個数: 48

約数和(自身を含む): 281476608

約数和(自身を除く): 193515588

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, 209431, 418862, 628293, 837724, 1047155, 1256586, 1466017, 2094310, 2513172, 2932034, 3141465, 4188620, 4398051, 5864068, 6282930, 7330085, 8796102, 12565860, 14660170, 17592204, 21990255, 29320340, 43980510, 87961020]

約数ペア:

[(1, 87961020), (2, 43980510), (3, 29320340), (4, 21990255), (5, 17592204), (6, 14660170), (7, 12565860), (10, 8796102), (12, 7330085), (14, 6282930), (15, 5864068), (20, 4398051), (21, 4188620), (28, 3141465), (30, 2932034), (35, 2513172), (42, 2094310), (60, 1466017), (70, 1256586), (84, 1047155), (105, 837724), (140, 628293), (210, 418862), (420, 209431)]