278380314

素因数分解:

$2^1\times 3^6\times {\mathrm{431}}^1\times {\mathrm{443}}^1$

素因数の和:894

約数の個数: 56

約数和(自身を含む): 628938432

約数和(自身を除く): 350558118

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 431, 443, 486, 729, 862, 886, 1293, 1329, 1458, 2586, 2658, 3879, 3987, 7758, 7974, 11637, 11961, 23274, 23922, 34911, 35883, 69822, 71766, 104733, 107649, 190933, 209466, 215298, 314199, 322947, 381866, 572799, 628398, 645894, 1145598, 1718397, 3436794, 5155191, 10310382, 15465573, 30931146, 46396719, 92793438, 139190157, 278380314]

約数ペア:

[(1, 278380314), (2, 139190157), (3, 92793438), (6, 46396719), (9, 30931146), (18, 15465573), (27, 10310382), (54, 5155191), (81, 3436794), (162, 1718397), (243, 1145598), (431, 645894), (443, 628398), (486, 572799), (729, 381866), (862, 322947), (886, 314199), (1293, 215298), (1329, 209466), (1458, 190933), (2586, 107649), (2658, 104733), (3879, 71766), (3987, 69822), (7758, 35883), (7974, 34911), (11637, 23922), (11961, 23274)]