128971384

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{20177}}^1$

素因数の和:20247

約数の個数: 32

約数和(自身を含む): 261506880

約数和(自身を除く): 132535496

約数列:

[1, 2, 4, 8, 17, 34, 47, 68, 94, 136, 188, 376, 799, 1598, 3196, 6392, 20177, 40354, 80708, 161416, 343009, 686018, 948319, 1372036, 1896638, 2744072, 3793276, 7586552, 16121423, 32242846, 64485692, 128971384]

約数ペア:

[(1, 128971384), (2, 64485692), (4, 32242846), (8, 16121423), (17, 7586552), (34, 3793276), (47, 2744072), (68, 1896638), (94, 1372036), (136, 948319), (188, 686018), (376, 343009), (799, 161416), (1598, 80708), (3196, 40354), (6392, 20177)]