81131952

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:323

約数の個数: 120

約数和(自身を含む): 235175920

約数和(自身を除く): 154043968

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 61, 66, 88, 121, 122, 132, 176, 183, 229, 242, 244, 264, 363, 366, 458, 484, 488, 528, 671, 687, 726, 732, 916, 968, 976, 1342, 1374, 1452, 1464, 1832, 1936, 2013, 2519, 2684, 2748, 2904, 2928, 3664, 4026, 5038, 5368, 5496, 5808, 7381, 7557, 8052, 10076, 10736, 10992, 13969, 14762, 15114, 16104, 20152, 22143, 27709, 27938, 29524, 30228, 32208, 40304, 41907, 44286, 55418, 55876, 59048, 60456, 83127, 83814, 88572, 110836, 111752, 118096, 120912, 153659, 166254, 167628, 177144, 221672, 223504, 307318, 332508, 335256, 354288, 443344, 460977, 614636, 665016, 670512, 921954, 1229272, 1330032, 1690249, 1843908, 2458544, 3380498, 3687816, 5070747, 6760996, 7375632, 10141494, 13521992, 20282988, 27043984, 40565976, 81131952]

約数ペア:

[(1, 81131952), (2, 40565976), (3, 27043984), (4, 20282988), (6, 13521992), (8, 10141494), (11, 7375632), (12, 6760996), (16, 5070747), (22, 3687816), (24, 3380498), (33, 2458544), (44, 1843908), (48, 1690249), (61, 1330032), (66, 1229272), (88, 921954), (121, 670512), (122, 665016), (132, 614636), (176, 460977), (183, 443344), (229, 354288), (242, 335256), (244, 332508), (264, 307318), (363, 223504), (366, 221672), (458, 177144), (484, 167628), (488, 166254), (528, 153659), (671, 120912), (687, 118096), (726, 111752), (732, 110836), (916, 88572), (968, 83814), (976, 83127), (1342, 60456), (1374, 59048), (1452, 55876), (1464, 55418), (1832, 44286), (1936, 41907), (2013, 40304), (2519, 32208), (2684, 30228), (2748, 29524), (2904, 27938), (2928, 27709), (3664, 22143), (4026, 20152), (5038, 16104), (5368, 15114), (5496, 14762), (5808, 13969), (7381, 10992), (7557, 10736), (8052, 10076)]