1388404790

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{8167087}}^1$

素因数の和:8167111

約数の個数: 16

約数和(自身を含む): 2646136512

約数和(自身を除く): 1257731722

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 8167087, 16334174, 40835435, 81670870, 138840479, 277680958, 694202395, 1388404790]

約数ペア:

[(1, 1388404790), (2, 694202395), (5, 277680958), (10, 138840479), (17, 81670870), (34, 40835435), (85, 16334174), (170, 8167087)]