25581556

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6389}}^1$

素因数の和:6424

約数の個数: 48

約数和(自身を含む): 60117120

約数和(自身を除く): 34535564

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 6389, 12778, 25556, 44723, 70279, 83057, 89446, 140558, 166114, 178892, 281116, 332228, 491953, 581399, 913627, 983906, 1162798, 1827254, 1967812, 2325596, 3654508, 6395389, 12790778, 25581556]

約数ペア:

[(1, 25581556), (2, 12790778), (4, 6395389), (7, 3654508), (11, 2325596), (13, 1967812), (14, 1827254), (22, 1162798), (26, 983906), (28, 913627), (44, 581399), (52, 491953), (77, 332228), (91, 281116), (143, 178892), (154, 166114), (182, 140558), (286, 89446), (308, 83057), (364, 70279), (572, 44723), (1001, 25556), (2002, 12778), (4004, 6389)]