81818256

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:213

約数の個数: 160

約数和(自身を含む): 245539840

約数和(自身を除く): 163721584

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 38, 39, 48, 52, 57, 67, 76, 78, 103, 104, 114, 134, 152, 156, 201, 206, 208, 228, 247, 268, 304, 309, 312, 402, 412, 456, 494, 536, 618, 624, 741, 804, 824, 871, 912, 988, 1072, 1236, 1273, 1339, 1482, 1608, 1648, 1742, 1957, 1976, 2472, 2546, 2613, 2678, 2964, 3216, 3484, 3819, 3914, 3952, 4017, 4944, 5092, 5226, 5356, 5871, 5928, 6901, 6968, 7638, 7828, 8034, 10184, 10452, 10712, 11742, 11856, 13802, 13936, 15276, 15656, 16068, 16549, 20368, 20703, 20904, 21424, 23484, 25441, 27604, 30552, 31312, 32136, 33098, 41406, 41808, 46968, 49647, 50882, 55208, 61104, 64272, 66196, 76323, 82812, 89713, 93936, 99294, 101764, 110416, 131119, 132392, 152646, 165624, 179426, 198588, 203528, 262238, 264784, 269139, 305292, 331248, 358852, 393357, 397176, 407056, 524476, 538278, 610584, 717704, 786714, 794352, 1048952, 1076556, 1221168, 1435408, 1573428, 1704547, 2097904, 2153112, 3146856, 3409094, 4306224, 5113641, 6293712, 6818188, 10227282, 13636376, 20454564, 27272752, 40909128, 81818256]

約数ペア:

[(1, 81818256), (2, 40909128), (3, 27272752), (4, 20454564), (6, 13636376), (8, 10227282), (12, 6818188), (13, 6293712), (16, 5113641), (19, 4306224), (24, 3409094), (26, 3146856), (38, 2153112), (39, 2097904), (48, 1704547), (52, 1573428), (57, 1435408), (67, 1221168), (76, 1076556), (78, 1048952), (103, 794352), (104, 786714), (114, 717704), (134, 610584), (152, 538278), (156, 524476), (201, 407056), (206, 397176), (208, 393357), (228, 358852), (247, 331248), (268, 305292), (304, 269139), (309, 264784), (312, 262238), (402, 203528), (412, 198588), (456, 179426), (494, 165624), (536, 152646), (618, 132392), (624, 131119), (741, 110416), (804, 101764), (824, 99294), (871, 93936), (912, 89713), (988, 82812), (1072, 76323), (1236, 66196), (1273, 64272), (1339, 61104), (1482, 55208), (1608, 50882), (1648, 49647), (1742, 46968), (1957, 41808), (1976, 41406), (2472, 33098), (2546, 32136), (2613, 31312), (2678, 30552), (2964, 27604), (3216, 25441), (3484, 23484), (3819, 21424), (3914, 20904), (3952, 20703), (4017, 20368), (4944, 16549), (5092, 16068), (5226, 15656), (5356, 15276), (5871, 13936), (5928, 13802), (6901, 11856), (6968, 11742), (7638, 10712), (7828, 10452), (8034, 10184)]