81520218

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{293}}^1$

素因数の和:384

約数の個数: 96

約数和(自身を含む): 202260240

約数和(自身を除く): 120740022

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 29, 39, 41, 58, 78, 82, 87, 117, 123, 174, 234, 246, 261, 293, 369, 377, 522, 533, 586, 738, 754, 879, 1066, 1131, 1189, 1599, 1758, 2262, 2378, 2637, 3198, 3393, 3567, 3809, 4797, 5274, 6786, 7134, 7618, 8497, 9594, 10701, 11427, 12013, 15457, 16994, 21402, 22854, 24026, 25491, 30914, 34281, 36039, 46371, 50982, 68562, 72078, 76473, 92742, 108117, 110461, 139113, 152946, 156169, 216234, 220922, 278226, 312338, 331383, 348377, 468507, 662766, 696754, 937014, 994149, 1045131, 1405521, 1988298, 2090262, 2811042, 3135393, 4528901, 6270786, 9057802, 13586703, 27173406, 40760109, 81520218]

約数ペア:

[(1, 81520218), (2, 40760109), (3, 27173406), (6, 13586703), (9, 9057802), (13, 6270786), (18, 4528901), (26, 3135393), (29, 2811042), (39, 2090262), (41, 1988298), (58, 1405521), (78, 1045131), (82, 994149), (87, 937014), (117, 696754), (123, 662766), (174, 468507), (234, 348377), (246, 331383), (261, 312338), (293, 278226), (369, 220922), (377, 216234), (522, 156169), (533, 152946), (586, 139113), (738, 110461), (754, 108117), (879, 92742), (1066, 76473), (1131, 72078), (1189, 68562), (1599, 50982), (1758, 46371), (2262, 36039), (2378, 34281), (2637, 30914), (3198, 25491), (3393, 24026), (3567, 22854), (3809, 21402), (4797, 16994), (5274, 15457), (6786, 12013), (7134, 11427), (7618, 10701), (8497, 9594)]