1278849978

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71983}}^1$

素因数の和:72048

約数の個数: 64

約数和(自身を含む): 3317022720

約数和(自身を除く): 2038172742

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 47, 54, 63, 94, 126, 141, 189, 282, 329, 378, 423, 658, 846, 987, 1269, 1974, 2538, 2961, 5922, 8883, 17766, 71983, 143966, 215949, 431898, 503881, 647847, 1007762, 1295694, 1511643, 1943541, 3023286, 3383201, 3887082, 4534929, 6766402, 9069858, 10149603, 13604787, 20299206, 23682407, 27209574, 30448809, 47364814, 60897618, 71047221, 91346427, 142094442, 182692854, 213141663, 426283326, 639424989, 1278849978]

約数ペア:

[(1, 1278849978), (2, 639424989), (3, 426283326), (6, 213141663), (7, 182692854), (9, 142094442), (14, 91346427), (18, 71047221), (21, 60897618), (27, 47364814), (42, 30448809), (47, 27209574), (54, 23682407), (63, 20299206), (94, 13604787), (126, 10149603), (141, 9069858), (189, 6766402), (282, 4534929), (329, 3887082), (378, 3383201), (423, 3023286), (658, 1943541), (846, 1511643), (987, 1295694), (1269, 1007762), (1974, 647847), (2538, 503881), (2961, 431898), (5922, 215949), (8883, 143966), (17766, 71983)]