81693878

素因数分解:

$2^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:345

約数の個数: 48

約数和(自身を含む): 147744000

約数和(自身を除く): 66050122

約数列:

[1, 2, 7, 14, 49, 59, 71, 98, 118, 142, 199, 398, 413, 497, 826, 994, 1393, 2786, 2891, 3479, 4189, 5782, 6958, 8378, 9751, 11741, 14129, 19502, 23482, 28258, 29323, 58646, 82187, 98903, 164374, 197806, 205261, 410522, 575309, 692321, 833611, 1150618, 1384642, 1667222, 5835277, 11670554, 40846939, 81693878]

約数ペア:

[(1, 81693878), (2, 40846939), (7, 11670554), (14, 5835277), (49, 1667222), (59, 1384642), (71, 1150618), (98, 833611), (118, 692321), (142, 575309), (199, 410522), (398, 205261), (413, 197806), (497, 164374), (826, 98903), (994, 82187), (1393, 58646), (2786, 29323), (2891, 28258), (3479, 23482), (4189, 19502), (5782, 14129), (6958, 11741), (8378, 9751)]