278987274

素因数分解:

$2^1\times 3^3\times {\mathrm{1321}}^1\times {\mathrm{3911}}^1$

素因数の和:5243

約数の個数: 32

約数和(自身を含む): 620599680

約数和(自身を除く): 341612406

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 1321, 2642, 3911, 3963, 7822, 7926, 11733, 11889, 23466, 23778, 35199, 35667, 70398, 71334, 105597, 211194, 5166431, 10332862, 15499293, 30998586, 46497879, 92995758, 139493637, 278987274]

約数ペア:

[(1, 278987274), (2, 139493637), (3, 92995758), (6, 46497879), (9, 30998586), (18, 15499293), (27, 10332862), (54, 5166431), (1321, 211194), (2642, 105597), (3911, 71334), (3963, 70398), (7822, 35667), (7926, 35199), (11733, 23778), (11889, 23466)]