1620781188

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{155069}}^1$

素因数の和:155156

約数の個数: 48

約数和(自身を含む): 4133545920

約数和(自身を除く): 2512764732

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 67, 78, 134, 156, 201, 268, 402, 804, 871, 1742, 2613, 3484, 5226, 10452, 155069, 310138, 465207, 620276, 930414, 1860828, 2015897, 4031794, 6047691, 8063588, 10389623, 12095382, 20779246, 24190764, 31168869, 41558492, 62337738, 124675476, 135065099, 270130198, 405195297, 540260396, 810390594, 1620781188]

約数ペア:

[(1, 1620781188), (2, 810390594), (3, 540260396), (4, 405195297), (6, 270130198), (12, 135065099), (13, 124675476), (26, 62337738), (39, 41558492), (52, 31168869), (67, 24190764), (78, 20779246), (134, 12095382), (156, 10389623), (201, 8063588), (268, 6047691), (402, 4031794), (804, 2015897), (871, 1860828), (1742, 930414), (2613, 620276), (3484, 465207), (5226, 310138), (10452, 155069)]