81861945

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:143

約数の個数: 96

約数和(自身を含む): 157199616

約数和(自身を除く): 75337671

約数列:

[1, 3, 5, 11, 15, 23, 33, 37, 53, 55, 69, 111, 115, 121, 159, 165, 185, 253, 265, 345, 363, 407, 555, 583, 605, 759, 795, 851, 1219, 1221, 1265, 1749, 1815, 1961, 2035, 2553, 2783, 2915, 3657, 3795, 4255, 4477, 5883, 6095, 6105, 6413, 8349, 8745, 9361, 9805, 12765, 13409, 13431, 13915, 18285, 19239, 21571, 22385, 28083, 29415, 32065, 40227, 41745, 45103, 46805, 64713, 67045, 67155, 96195, 102971, 107855, 135309, 140415, 147499, 201135, 225515, 237281, 308913, 323565, 442497, 496133, 514855, 676545, 711843, 737495, 1186405, 1488399, 1544565, 2212485, 2480665, 3559215, 5457463, 7441995, 16372389, 27287315, 81861945]

約数ペア:

[(1, 81861945), (3, 27287315), (5, 16372389), (11, 7441995), (15, 5457463), (23, 3559215), (33, 2480665), (37, 2212485), (53, 1544565), (55, 1488399), (69, 1186405), (111, 737495), (115, 711843), (121, 676545), (159, 514855), (165, 496133), (185, 442497), (253, 323565), (265, 308913), (345, 237281), (363, 225515), (407, 201135), (555, 147499), (583, 140415), (605, 135309), (759, 107855), (795, 102971), (851, 96195), (1219, 67155), (1221, 67045), (1265, 64713), (1749, 46805), (1815, 45103), (1961, 41745), (2035, 40227), (2553, 32065), (2783, 29415), (2915, 28083), (3657, 22385), (3795, 21571), (4255, 19239), (4477, 18285), (5883, 13915), (6095, 13431), (6105, 13409), (6413, 12765), (8349, 9805), (8745, 9361)]