81961308

素因数分解:

$2^2\times 3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:130

約数の個数: 240

約数和(自身を含む): 264670560

約数和(自身を除く): 182709252

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 27, 29, 33, 36, 39, 44, 52, 54, 58, 61, 66, 78, 81, 87, 99, 108, 116, 117, 122, 132, 143, 156, 162, 174, 183, 198, 234, 244, 261, 286, 297, 319, 324, 348, 351, 366, 377, 396, 429, 468, 522, 549, 572, 594, 638, 671, 702, 732, 754, 783, 793, 858, 891, 957, 1044, 1053, 1098, 1131, 1188, 1276, 1287, 1342, 1404, 1508, 1566, 1586, 1647, 1716, 1769, 1782, 1914, 2013, 2106, 2196, 2262, 2349, 2379, 2574, 2684, 2871, 3132, 3172, 3294, 3393, 3538, 3564, 3828, 3861, 4026, 4147, 4212, 4524, 4698, 4758, 4941, 5148, 5307, 5742, 6039, 6588, 6786, 7076, 7137, 7722, 8052, 8294, 8613, 8723, 9396, 9516, 9882, 10179, 10614, 11484, 11583, 12078, 12441, 13572, 14274, 15444, 15921, 16588, 17226, 17446, 18117, 19459, 19764, 20358, 21228, 21411, 22997, 23166, 24156, 24882, 25839, 26169, 28548, 30537, 31842, 34452, 34892, 36234, 37323, 38918, 40716, 42822, 45994, 46332, 47763, 49764, 51678, 52338, 54351, 58377, 61074, 63684, 64233, 68991, 72468, 74646, 77836, 78507, 85644, 91988, 95526, 103356, 104676, 108702, 111969, 116754, 122148, 128466, 137982, 143289, 149292, 157014, 175131, 191052, 206973, 217404, 223938, 233508, 235521, 252967, 256932, 275964, 286578, 314028, 335907, 350262, 413946, 447876, 471042, 505934, 525393, 573156, 620919, 671814, 700524, 706563, 758901, 827892, 942084, 1011868, 1050786, 1241838, 1343628, 1413126, 1517802, 1576179, 1862757, 2101572, 2276703, 2483676, 2826252, 3035604, 3152358, 3725514, 4553406, 6304716, 6830109, 7451028, 9106812, 13660218, 20490327, 27320436, 40980654, 81961308]

約数ペア:

[(1, 81961308), (2, 40980654), (3, 27320436), (4, 20490327), (6, 13660218), (9, 9106812), (11, 7451028), (12, 6830109), (13, 6304716), (18, 4553406), (22, 3725514), (26, 3152358), (27, 3035604), (29, 2826252), (33, 2483676), (36, 2276703), (39, 2101572), (44, 1862757), (52, 1576179), (54, 1517802), (58, 1413126), (61, 1343628), (66, 1241838), (78, 1050786), (81, 1011868), (87, 942084), (99, 827892), (108, 758901), (116, 706563), (117, 700524), (122, 671814), (132, 620919), (143, 573156), (156, 525393), (162, 505934), (174, 471042), (183, 447876), (198, 413946), (234, 350262), (244, 335907), (261, 314028), (286, 286578), (297, 275964), (319, 256932), (324, 252967), (348, 235521), (351, 233508), (366, 223938), (377, 217404), (396, 206973), (429, 191052), (468, 175131), (522, 157014), (549, 149292), (572, 143289), (594, 137982), (638, 128466), (671, 122148), (702, 116754), (732, 111969), (754, 108702), (783, 104676), (793, 103356), (858, 95526), (891, 91988), (957, 85644), (1044, 78507), (1053, 77836), (1098, 74646), (1131, 72468), (1188, 68991), (1276, 64233), (1287, 63684), (1342, 61074), (1404, 58377), (1508, 54351), (1566, 52338), (1586, 51678), (1647, 49764), (1716, 47763), (1769, 46332), (1782, 45994), (1914, 42822), (2013, 40716), (2106, 38918), (2196, 37323), (2262, 36234), (2349, 34892), (2379, 34452), (2574, 31842), (2684, 30537), (2871, 28548), (3132, 26169), (3172, 25839), (3294, 24882), (3393, 24156), (3538, 23166), (3564, 22997), (3828, 21411), (3861, 21228), (4026, 20358), (4147, 19764), (4212, 19459), (4524, 18117), (4698, 17446), (4758, 17226), (4941, 16588), (5148, 15921), (5307, 15444), (5742, 14274), (6039, 13572), (6588, 12441), (6786, 12078), (7076, 11583), (7137, 11484), (7722, 10614), (8052, 10179), (8294, 9882), (8613, 9516), (8723, 9396)]