278903898

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{18919}}^1$

素因数の和:18953

約数の個数: 80

約数和(自身を含む): 769211520

約数和(自身を除く): 490307622

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 54, 63, 78, 81, 91, 117, 126, 162, 182, 189, 234, 273, 351, 378, 546, 567, 702, 819, 1053, 1134, 1638, 2106, 2457, 4914, 7371, 14742, 18919, 37838, 56757, 113514, 132433, 170271, 245947, 264866, 340542, 397299, 491894, 510813, 737841, 794598, 1021626, 1191897, 1475682, 1532439, 1721629, 2213523, 2383794, 3064878, 3443258, 3575691, 4427046, 5164887, 6640569, 7151382, 10329774, 10727073, 13281138, 15494661, 19921707, 21454146, 30989322, 39843414, 46483983, 92967966, 139451949, 278903898]

約数ペア:

[(1, 278903898), (2, 139451949), (3, 92967966), (6, 46483983), (7, 39843414), (9, 30989322), (13, 21454146), (14, 19921707), (18, 15494661), (21, 13281138), (26, 10727073), (27, 10329774), (39, 7151382), (42, 6640569), (54, 5164887), (63, 4427046), (78, 3575691), (81, 3443258), (91, 3064878), (117, 2383794), (126, 2213523), (162, 1721629), (182, 1532439), (189, 1475682), (234, 1191897), (273, 1021626), (351, 794598), (378, 737841), (546, 510813), (567, 491894), (702, 397299), (819, 340542), (1053, 264866), (1134, 245947), (1638, 170271), (2106, 132433), (2457, 113514), (4914, 56757), (7371, 37838), (14742, 18919)]