281020810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{6263}}^1$

素因数の和:6918

約数の個数: 32

約数和(自身を含む): 579094272

約数和(自身を除く): 298073462

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 641, 1282, 3205, 4487, 6263, 6410, 8974, 12526, 22435, 31315, 43841, 44870, 62630, 87682, 219205, 438410, 4014583, 8029166, 20072915, 28102081, 40145830, 56204162, 140510405, 281020810]

約数ペア:

[(1, 281020810), (2, 140510405), (5, 56204162), (7, 40145830), (10, 28102081), (14, 20072915), (35, 8029166), (70, 4014583), (641, 438410), (1282, 219205), (3205, 87682), (4487, 62630), (6263, 44870), (6410, 43841), (8974, 31315), (12526, 22435)]