80904040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{1021}}^1$

素因数の和:1322

約数の個数: 64

約数和(自身を含む): 208978560

約数和(自身を除く): 128074520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 283, 566, 1021, 1132, 1415, 1981, 2042, 2264, 2830, 3962, 4084, 5105, 5660, 7147, 7924, 8168, 9905, 10210, 11320, 14294, 15848, 19810, 20420, 28588, 35735, 39620, 40840, 57176, 71470, 79240, 142940, 285880, 288943, 577886, 1155772, 1444715, 2022601, 2311544, 2889430, 4045202, 5778860, 8090404, 10113005, 11557720, 16180808, 20226010, 40452020, 80904040]

約数ペア:

[(1, 80904040), (2, 40452020), (4, 20226010), (5, 16180808), (7, 11557720), (8, 10113005), (10, 8090404), (14, 5778860), (20, 4045202), (28, 2889430), (35, 2311544), (40, 2022601), (56, 1444715), (70, 1155772), (140, 577886), (280, 288943), (283, 285880), (566, 142940), (1021, 79240), (1132, 71470), (1415, 57176), (1981, 40840), (2042, 39620), (2264, 35735), (2830, 28588), (3962, 20420), (4084, 19810), (5105, 15848), (5660, 14294), (7147, 11320), (7924, 10210), (8168, 9905)]