20826470

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2237}}^1$

素因数の和:2277

約数の個数: 48

約数和(自身を含む): 45923760

約数和(自身を除く): 25097290

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 95, 98, 133, 190, 245, 266, 490, 665, 931, 1330, 1862, 2237, 4474, 4655, 9310, 11185, 15659, 22370, 31318, 42503, 78295, 85006, 109613, 156590, 212515, 219226, 297521, 425030, 548065, 595042, 1096130, 1487605, 2082647, 2975210, 4165294, 10413235, 20826470]

約数ペア:

[(1, 20826470), (2, 10413235), (5, 4165294), (7, 2975210), (10, 2082647), (14, 1487605), (19, 1096130), (35, 595042), (38, 548065), (49, 425030), (70, 297521), (95, 219226), (98, 212515), (133, 156590), (190, 109613), (245, 85006), (266, 78295), (490, 42503), (665, 31318), (931, 22370), (1330, 15659), (1862, 11185), (2237, 9310), (4474, 4655)]