628778456

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{31}}^2\times {\mathrm{283}}^1$

素因数の和:385

約数の個数: 72

約数和(自身を含む): 1298665260

約数和(自身を除く): 669886804

約数列:

[1, 2, 4, 8, 17, 31, 34, 62, 68, 124, 136, 248, 283, 289, 527, 566, 578, 961, 1054, 1132, 1156, 1922, 2108, 2264, 2312, 3844, 4216, 4811, 7688, 8773, 8959, 9622, 16337, 17546, 17918, 19244, 32674, 35092, 35836, 38488, 65348, 70184, 71672, 81787, 130696, 149141, 163574, 271963, 277729, 298282, 327148, 543926, 555458, 596564, 654296, 1087852, 1110916, 1193128, 2175704, 2221832, 2535397, 4623371, 5070794, 9246742, 10141588, 18493484, 20283176, 36986968, 78597307, 157194614, 314389228, 628778456]

約数ペア:

[(1, 628778456), (2, 314389228), (4, 157194614), (8, 78597307), (17, 36986968), (31, 20283176), (34, 18493484), (62, 10141588), (68, 9246742), (124, 5070794), (136, 4623371), (248, 2535397), (283, 2221832), (289, 2175704), (527, 1193128), (566, 1110916), (578, 1087852), (961, 654296), (1054, 596564), (1132, 555458), (1156, 543926), (1922, 327148), (2108, 298282), (2264, 277729), (2312, 271963), (3844, 163574), (4216, 149141), (4811, 130696), (7688, 81787), (8773, 71672), (8959, 70184), (9622, 65348), (16337, 38488), (17546, 35836), (17918, 35092), (19244, 32674)]