128536478

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1\times {\mathrm{839}}^1$

素因数の和:1232

約数の個数: 32

約数和(自身を含む): 228372480

約数和(自身を除く): 99836002

約数列:

[1, 2, 7, 14, 31, 62, 217, 353, 434, 706, 839, 1678, 2471, 4942, 5873, 10943, 11746, 21886, 26009, 52018, 76601, 153202, 182063, 296167, 364126, 592334, 2073169, 4146338, 9181177, 18362354, 64268239, 128536478]

約数ペア:

[(1, 128536478), (2, 64268239), (7, 18362354), (14, 9181177), (31, 4146338), (62, 2073169), (217, 592334), (353, 364126), (434, 296167), (706, 182063), (839, 153202), (1678, 76601), (2471, 52018), (4942, 26009), (5873, 21886), (10943, 11746)]