204271970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1787}}^1$

素因数の和:1895

約数の個数: 64

約数和(自身を含む): 444911616

約数和(自身を除く): 240639646

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 71, 115, 142, 161, 230, 322, 355, 497, 710, 805, 994, 1610, 1633, 1787, 2485, 3266, 3574, 4970, 8165, 8935, 11431, 12509, 16330, 17870, 22862, 25018, 41101, 57155, 62545, 82202, 114310, 125090, 126877, 205505, 253754, 287707, 411010, 575414, 634385, 888139, 1268770, 1438535, 1776278, 2877070, 2918171, 4440695, 5836342, 8881390, 14590855, 20427197, 29181710, 40854394, 102135985, 204271970]

約数ペア:

[(1, 204271970), (2, 102135985), (5, 40854394), (7, 29181710), (10, 20427197), (14, 14590855), (23, 8881390), (35, 5836342), (46, 4440695), (70, 2918171), (71, 2877070), (115, 1776278), (142, 1438535), (161, 1268770), (230, 888139), (322, 634385), (355, 575414), (497, 411010), (710, 287707), (805, 253754), (994, 205505), (1610, 126877), (1633, 125090), (1787, 114310), (2485, 82202), (3266, 62545), (3574, 57155), (4970, 41101), (8165, 25018), (8935, 22862), (11431, 17870), (12509, 16330)]