128596144

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{409}}^1\times {\mathrm{457}}^1$

素因数の和:917

約数の個数: 40

約数和(自身を含む): 256131920

約数和(自身を除く): 127535776

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 409, 457, 688, 818, 914, 1636, 1828, 3272, 3656, 6544, 7312, 17587, 19651, 35174, 39302, 70348, 78604, 140696, 157208, 186913, 281392, 314416, 373826, 747652, 1495304, 2990608, 8037259, 16074518, 32149036, 64298072, 128596144]

約数ペア:

[(1, 128596144), (2, 64298072), (4, 32149036), (8, 16074518), (16, 8037259), (43, 2990608), (86, 1495304), (172, 747652), (344, 373826), (409, 314416), (457, 281392), (688, 186913), (818, 157208), (914, 140696), (1636, 78604), (1828, 70348), (3272, 39302), (3656, 35174), (6544, 19651), (7312, 17587)]