81237996

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^3\times {\mathrm{47}}^1$

素因数の和:121

約数の個数: 144

約数和(自身を含む): 252994560

約数和(自身を除く): 171756564

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 38, 42, 47, 57, 63, 76, 84, 94, 114, 126, 133, 141, 171, 188, 228, 252, 266, 282, 329, 342, 361, 399, 423, 532, 564, 658, 684, 722, 798, 846, 893, 987, 1083, 1197, 1316, 1444, 1596, 1692, 1786, 1974, 2166, 2394, 2527, 2679, 2961, 3249, 3572, 3948, 4332, 4788, 5054, 5358, 5922, 6251, 6498, 6859, 7581, 8037, 10108, 10716, 11844, 12502, 12996, 13718, 15162, 16074, 16967, 18753, 20577, 22743, 25004, 27436, 30324, 32148, 33934, 37506, 41154, 45486, 48013, 50901, 56259, 61731, 67868, 75012, 82308, 90972, 96026, 101802, 112518, 118769, 123462, 144039, 152703, 192052, 203604, 225036, 237538, 246924, 288078, 305406, 322373, 356307, 432117, 475076, 576156, 610812, 644746, 712614, 864234, 967119, 1068921, 1289492, 1425228, 1728468, 1934238, 2137842, 2256611, 2901357, 3868476, 4275684, 4513222, 5802714, 6769833, 9026444, 11605428, 13539666, 20309499, 27079332, 40618998, 81237996]

約数ペア:

[(1, 81237996), (2, 40618998), (3, 27079332), (4, 20309499), (6, 13539666), (7, 11605428), (9, 9026444), (12, 6769833), (14, 5802714), (18, 4513222), (19, 4275684), (21, 3868476), (28, 2901357), (36, 2256611), (38, 2137842), (42, 1934238), (47, 1728468), (57, 1425228), (63, 1289492), (76, 1068921), (84, 967119), (94, 864234), (114, 712614), (126, 644746), (133, 610812), (141, 576156), (171, 475076), (188, 432117), (228, 356307), (252, 322373), (266, 305406), (282, 288078), (329, 246924), (342, 237538), (361, 225036), (399, 203604), (423, 192052), (532, 152703), (564, 144039), (658, 123462), (684, 118769), (722, 112518), (798, 101802), (846, 96026), (893, 90972), (987, 82308), (1083, 75012), (1197, 67868), (1316, 61731), (1444, 56259), (1596, 50901), (1692, 48013), (1786, 45486), (1974, 41154), (2166, 37506), (2394, 33934), (2527, 32148), (2679, 30324), (2961, 27436), (3249, 25004), (3572, 22743), (3948, 20577), (4332, 18753), (4788, 16967), (5054, 16074), (5358, 15162), (5922, 13718), (6251, 12996), (6498, 12502), (6859, 11844), (7581, 10716), (8037, 10108)]