178720164

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{271}}^1\times {\mathrm{2617}}^1$

素因数の和:2905

約数の個数: 72

約数和(自身を含む): 518405888

約数和(自身を除く): 339685724

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 271, 542, 813, 1084, 1626, 1897, 2439, 2617, 3252, 3794, 4878, 5234, 5691, 7588, 7851, 9756, 10468, 11382, 15702, 17073, 18319, 22764, 23553, 31404, 34146, 36638, 47106, 54957, 68292, 73276, 94212, 109914, 164871, 219828, 329742, 659484, 709207, 1418414, 2127621, 2836828, 4255242, 4964449, 6382863, 8510484, 9928898, 12765726, 14893347, 19857796, 25531452, 29786694, 44680041, 59573388, 89360082, 178720164]

約数ペア:

[(1, 178720164), (2, 89360082), (3, 59573388), (4, 44680041), (6, 29786694), (7, 25531452), (9, 19857796), (12, 14893347), (14, 12765726), (18, 9928898), (21, 8510484), (28, 6382863), (36, 4964449), (42, 4255242), (63, 2836828), (84, 2127621), (126, 1418414), (252, 709207), (271, 659484), (542, 329742), (813, 219828), (1084, 164871), (1626, 109914), (1897, 94212), (2439, 73276), (2617, 68292), (3252, 54957), (3794, 47106), (4878, 36638), (5234, 34146), (5691, 31404), (7588, 23553), (7851, 22764), (9756, 18319), (10468, 17073), (11382, 15702)]