28887195

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:172

約数の個数: 64

約数和(自身を含む): 51830784

約数和(自身を除く): 22943589

約数列:

[1, 3, 5, 15, 23, 31, 37, 69, 73, 93, 111, 115, 155, 185, 219, 345, 365, 465, 555, 713, 851, 1095, 1147, 1679, 2139, 2263, 2553, 2701, 3441, 3565, 4255, 5037, 5735, 6789, 8103, 8395, 10695, 11315, 12765, 13505, 17205, 25185, 26381, 33945, 40515, 52049, 62123, 79143, 83731, 131905, 156147, 186369, 251193, 260245, 310615, 395715, 418655, 780735, 931845, 1255965, 1925813, 5777439, 9629065, 28887195]

約数ペア:

[(1, 28887195), (3, 9629065), (5, 5777439), (15, 1925813), (23, 1255965), (31, 931845), (37, 780735), (69, 418655), (73, 395715), (93, 310615), (111, 260245), (115, 251193), (155, 186369), (185, 156147), (219, 131905), (345, 83731), (365, 79143), (465, 62123), (555, 52049), (713, 40515), (851, 33945), (1095, 26381), (1147, 25185), (1679, 17205), (2139, 13505), (2263, 12765), (2553, 11315), (2701, 10695), (3441, 8395), (3565, 8103), (4255, 6789), (5037, 5735)]