28628655

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 53637120

約数和(自身を除く): 25008465

約数列:

[1, 3, 5, 11, 15, 29, 31, 33, 55, 87, 93, 145, 155, 165, 193, 319, 341, 435, 465, 579, 899, 957, 965, 1023, 1595, 1705, 2123, 2697, 2895, 4495, 4785, 5115, 5597, 5983, 6369, 9889, 10615, 13485, 16791, 17949, 27985, 29667, 29915, 31845, 49445, 61567, 65813, 83955, 89745, 148335, 173507, 184701, 197439, 307835, 329065, 520521, 867535, 923505, 987195, 1908577, 2602605, 5725731, 9542885, 28628655]

約数ペア:

[(1, 28628655), (3, 9542885), (5, 5725731), (11, 2602605), (15, 1908577), (29, 987195), (31, 923505), (33, 867535), (55, 520521), (87, 329065), (93, 307835), (145, 197439), (155, 184701), (165, 173507), (193, 148335), (319, 89745), (341, 83955), (435, 65813), (465, 61567), (579, 49445), (899, 31845), (957, 29915), (965, 29667), (1023, 27985), (1595, 17949), (1705, 16791), (2123, 13485), (2697, 10615), (2895, 9889), (4495, 6369), (4785, 5983), (5115, 5597)]