128289560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{1619}}^1$

素因数の和:1920

約数の個数: 64

約数和(自身を含む): 331257600

約数和(自身を除く): 202968040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 283, 566, 1132, 1415, 1619, 1981, 2264, 2830, 3238, 3962, 5660, 6476, 7924, 8095, 9905, 11320, 11333, 12952, 15848, 16190, 19810, 22666, 32380, 39620, 45332, 56665, 64760, 79240, 90664, 113330, 226660, 453320, 458177, 916354, 1832708, 2290885, 3207239, 3665416, 4581770, 6414478, 9163540, 12828956, 16036195, 18327080, 25657912, 32072390, 64144780, 128289560]

約数ペア:

[(1, 128289560), (2, 64144780), (4, 32072390), (5, 25657912), (7, 18327080), (8, 16036195), (10, 12828956), (14, 9163540), (20, 6414478), (28, 4581770), (35, 3665416), (40, 3207239), (56, 2290885), (70, 1832708), (140, 916354), (280, 458177), (283, 453320), (566, 226660), (1132, 113330), (1415, 90664), (1619, 79240), (1981, 64760), (2264, 56665), (2830, 45332), (3238, 39620), (3962, 32380), (5660, 22666), (6476, 19810), (7924, 16190), (8095, 15848), (9905, 12952), (11320, 11333)]