28475718

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 63402240

約数和(自身を除く): 34926522

約数列:

[1, 2, 3, 6, 19, 37, 38, 43, 57, 74, 86, 111, 114, 129, 157, 222, 258, 314, 471, 703, 817, 942, 1406, 1591, 1634, 2109, 2451, 2983, 3182, 4218, 4773, 4902, 5809, 5966, 6751, 8949, 9546, 11618, 13502, 17427, 17898, 20253, 30229, 34854, 40506, 60458, 90687, 110371, 128269, 181374, 220742, 249787, 256538, 331113, 384807, 499574, 662226, 749361, 769614, 1498722, 4745953, 9491906, 14237859, 28475718]

約数ペア:

[(1, 28475718), (2, 14237859), (3, 9491906), (6, 4745953), (19, 1498722), (37, 769614), (38, 749361), (43, 662226), (57, 499574), (74, 384807), (86, 331113), (111, 256538), (114, 249787), (129, 220742), (157, 181374), (222, 128269), (258, 110371), (314, 90687), (471, 60458), (703, 40506), (817, 34854), (942, 30229), (1406, 20253), (1591, 17898), (1634, 17427), (2109, 13502), (2451, 11618), (2983, 9546), (3182, 8949), (4218, 6751), (4773, 5966), (4902, 5809)]