81995264

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:255

約数の個数: 80

約数和(自身を含む): 179655168

約数和(自身を除く): 97659904

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 97, 104, 127, 128, 194, 208, 254, 256, 388, 416, 508, 512, 776, 832, 1016, 1261, 1552, 1651, 1664, 2032, 2522, 3104, 3302, 3328, 4064, 5044, 6208, 6604, 6656, 8128, 10088, 12319, 12416, 13208, 16256, 20176, 24638, 24832, 26416, 32512, 40352, 49276, 49664, 52832, 65024, 80704, 98552, 105664, 160147, 161408, 197104, 211328, 320294, 322816, 394208, 422656, 640588, 645632, 788416, 845312, 1281176, 1576832, 2562352, 3153664, 5124704, 6307328, 10249408, 20498816, 40997632, 81995264]

約数ペア:

[(1, 81995264), (2, 40997632), (4, 20498816), (8, 10249408), (13, 6307328), (16, 5124704), (26, 3153664), (32, 2562352), (52, 1576832), (64, 1281176), (97, 845312), (104, 788416), (127, 645632), (128, 640588), (194, 422656), (208, 394208), (254, 322816), (256, 320294), (388, 211328), (416, 197104), (508, 161408), (512, 160147), (776, 105664), (832, 98552), (1016, 80704), (1261, 65024), (1552, 52832), (1651, 49664), (1664, 49276), (2032, 40352), (2522, 32512), (3104, 26416), (3302, 24832), (3328, 24638), (4064, 20176), (5044, 16256), (6208, 13208), (6604, 12416), (6656, 12319), (8128, 10088)]