77680816

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:218

約数の個数: 80

約数和(自身を含む): 166060800

約数和(自身を除く): 88379984

約数列:

[1, 2, 4, 8, 16, 19, 38, 59, 61, 71, 76, 118, 122, 142, 152, 236, 244, 284, 304, 472, 488, 568, 944, 976, 1121, 1136, 1159, 1349, 2242, 2318, 2698, 3599, 4189, 4331, 4484, 4636, 5396, 7198, 8378, 8662, 8968, 9272, 10792, 14396, 16756, 17324, 17936, 18544, 21584, 28792, 33512, 34648, 57584, 67024, 68381, 69296, 79591, 82289, 136762, 159182, 164578, 255529, 273524, 318364, 329156, 511058, 547048, 636728, 658312, 1022116, 1094096, 1273456, 1316624, 2044232, 4088464, 4855051, 9710102, 19420204, 38840408, 77680816]

約数ペア:

[(1, 77680816), (2, 38840408), (4, 19420204), (8, 9710102), (16, 4855051), (19, 4088464), (38, 2044232), (59, 1316624), (61, 1273456), (71, 1094096), (76, 1022116), (118, 658312), (122, 636728), (142, 547048), (152, 511058), (236, 329156), (244, 318364), (284, 273524), (304, 255529), (472, 164578), (488, 159182), (568, 136762), (944, 82289), (976, 79591), (1121, 69296), (1136, 68381), (1159, 67024), (1349, 57584), (2242, 34648), (2318, 33512), (2698, 28792), (3599, 21584), (4189, 18544), (4331, 17936), (4484, 17324), (4636, 16756), (5396, 14396), (7198, 10792), (8378, 9272), (8662, 8968)]