81189195

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 145981440

約数和(自身を除く): 64792245

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 109, 115, 127, 255, 327, 345, 381, 391, 545, 635, 1173, 1635, 1853, 1905, 1955, 2159, 2507, 2921, 5559, 5865, 6477, 7521, 8763, 9265, 10795, 12535, 13843, 14605, 27795, 32385, 37605, 41529, 42619, 43815, 49657, 69215, 127857, 148971, 207645, 213095, 235331, 248285, 318389, 639285, 705993, 744855, 955167, 1176655, 1591945, 3529965, 4775835, 5412613, 16237839, 27063065, 81189195]

約数ペア:

[(1, 81189195), (3, 27063065), (5, 16237839), (15, 5412613), (17, 4775835), (23, 3529965), (51, 1591945), (69, 1176655), (85, 955167), (109, 744855), (115, 705993), (127, 639285), (255, 318389), (327, 248285), (345, 235331), (381, 213095), (391, 207645), (545, 148971), (635, 127857), (1173, 69215), (1635, 49657), (1853, 43815), (1905, 42619), (1955, 41529), (2159, 37605), (2507, 32385), (2921, 27795), (5559, 14605), (5865, 13843), (6477, 12535), (7521, 10795), (8763, 9265)]