389249588

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{1913}}^1$

素因数の和:1993

約数の個数: 72

約数和(自身を含む): 863045568

約数和(自身を除く): 473795980

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 52, 86, 91, 169, 172, 182, 301, 338, 364, 559, 602, 676, 1118, 1183, 1204, 1913, 2236, 2366, 3826, 3913, 4732, 7267, 7652, 7826, 13391, 14534, 15652, 24869, 26782, 29068, 49738, 50869, 53564, 82259, 99476, 101738, 164518, 174083, 203476, 323297, 329036, 348166, 575813, 646594, 696332, 1069367, 1151626, 1293188, 2138734, 2263079, 2303252, 4277468, 4526158, 7485569, 9052316, 13901771, 14971138, 27803542, 29942276, 55607084, 97312397, 194624794, 389249588]

約数ペア:

[(1, 389249588), (2, 194624794), (4, 97312397), (7, 55607084), (13, 29942276), (14, 27803542), (26, 14971138), (28, 13901771), (43, 9052316), (52, 7485569), (86, 4526158), (91, 4277468), (169, 2303252), (172, 2263079), (182, 2138734), (301, 1293188), (338, 1151626), (364, 1069367), (559, 696332), (602, 646594), (676, 575813), (1118, 348166), (1183, 329036), (1204, 323297), (1913, 203476), (2236, 174083), (2366, 164518), (3826, 101738), (3913, 99476), (4732, 82259), (7267, 53564), (7652, 50869), (7826, 49738), (13391, 29068), (14534, 26782), (15652, 24869)]