71115020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{821}}^1$

素因数の和:962

約数の個数: 48

約数和(自身を含む): 154115136

約数和(自身を除く): 83000116

約数列:

[1, 2, 4, 5, 10, 20, 61, 71, 122, 142, 244, 284, 305, 355, 610, 710, 821, 1220, 1420, 1642, 3284, 4105, 4331, 8210, 8662, 16420, 17324, 21655, 43310, 50081, 58291, 86620, 100162, 116582, 200324, 233164, 250405, 291455, 500810, 582910, 1001620, 1165820, 3555751, 7111502, 14223004, 17778755, 35557510, 71115020]

約数ペア:

[(1, 71115020), (2, 35557510), (4, 17778755), (5, 14223004), (10, 7111502), (20, 3555751), (61, 1165820), (71, 1001620), (122, 582910), (142, 500810), (244, 291455), (284, 250405), (305, 233164), (355, 200324), (610, 116582), (710, 100162), (821, 86620), (1220, 58291), (1420, 50081), (1642, 43310), (3284, 21655), (4105, 17324), (4331, 16420), (8210, 8662)]