128984778

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4273}}^1$

素因数の和:4340

約数の個数: 64

約数和(自身を含む): 315934080

約数和(自身を除く): 186949302

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 43, 54, 78, 86, 117, 129, 234, 258, 351, 387, 559, 702, 774, 1118, 1161, 1677, 2322, 3354, 4273, 5031, 8546, 10062, 12819, 15093, 25638, 30186, 38457, 55549, 76914, 111098, 115371, 166647, 183739, 230742, 333294, 367478, 499941, 551217, 999882, 1102434, 1499823, 1653651, 2388607, 2999646, 3307302, 4777214, 4960953, 7165821, 9921906, 14331642, 21497463, 42994926, 64492389, 128984778]

約数ペア:

[(1, 128984778), (2, 64492389), (3, 42994926), (6, 21497463), (9, 14331642), (13, 9921906), (18, 7165821), (26, 4960953), (27, 4777214), (39, 3307302), (43, 2999646), (54, 2388607), (78, 1653651), (86, 1499823), (117, 1102434), (129, 999882), (234, 551217), (258, 499941), (351, 367478), (387, 333294), (559, 230742), (702, 183739), (774, 166647), (1118, 115371), (1161, 111098), (1677, 76914), (2322, 55549), (3354, 38457), (4273, 30186), (5031, 25638), (8546, 15093), (10062, 12819)]