28977340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{787}}^1$

素因数の和:1066

約数の個数: 48

約数和(自身を含む): 69898752

約数和(自身を除く): 40921412

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 263, 526, 787, 1052, 1315, 1574, 1841, 2630, 3148, 3682, 3935, 5260, 5509, 7364, 7870, 9205, 11018, 15740, 18410, 22036, 27545, 36820, 55090, 110180, 206981, 413962, 827924, 1034905, 1448867, 2069810, 2897734, 4139620, 5795468, 7244335, 14488670, 28977340]

約数ペア:

[(1, 28977340), (2, 14488670), (4, 7244335), (5, 5795468), (7, 4139620), (10, 2897734), (14, 2069810), (20, 1448867), (28, 1034905), (35, 827924), (70, 413962), (140, 206981), (263, 110180), (526, 55090), (787, 36820), (1052, 27545), (1315, 22036), (1574, 18410), (1841, 15740), (2630, 11018), (3148, 9205), (3682, 7870), (3935, 7364), (5260, 5509)]