28149290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{971}}^1$

素因数の和:1214

約数の個数: 32

約数和(自身を含む): 54867456

約数和(自身を除く): 26718166

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 223, 446, 971, 1115, 1942, 2230, 2899, 4855, 5798, 9710, 12623, 14495, 25246, 28990, 63115, 126230, 216533, 433066, 1082665, 2165330, 2814929, 5629858, 14074645, 28149290]

約数ペア:

[(1, 28149290), (2, 14074645), (5, 5629858), (10, 2814929), (13, 2165330), (26, 1082665), (65, 433066), (130, 216533), (223, 126230), (446, 63115), (971, 28990), (1115, 25246), (1942, 14495), (2230, 12623), (2899, 9710), (4855, 5798)]