28919478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:361

約数の個数: 64

約数和(自身を含む): 68935680

約数和(自身を除く): 40016202

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 67, 86, 129, 134, 201, 239, 258, 301, 402, 469, 478, 602, 717, 903, 938, 1407, 1434, 1673, 1806, 2814, 2881, 3346, 5019, 5762, 8643, 10038, 10277, 16013, 17286, 20167, 20554, 30831, 32026, 40334, 48039, 60501, 61662, 71939, 96078, 112091, 121002, 143878, 215817, 224182, 336273, 431634, 672546, 688559, 1377118, 2065677, 4131354, 4819913, 9639826, 14459739, 28919478]

約数ペア:

[(1, 28919478), (2, 14459739), (3, 9639826), (6, 4819913), (7, 4131354), (14, 2065677), (21, 1377118), (42, 688559), (43, 672546), (67, 431634), (86, 336273), (129, 224182), (134, 215817), (201, 143878), (239, 121002), (258, 112091), (301, 96078), (402, 71939), (469, 61662), (478, 60501), (602, 48039), (717, 40334), (903, 32026), (938, 30831), (1407, 20554), (1434, 20167), (1673, 17286), (1806, 16013), (2814, 10277), (2881, 10038), (3346, 8643), (5019, 5762)]