81253728

素因数分解:

$2^5\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:545

約数の個数: 144

約数和(自身を含む): 251596800

約数和(自身を除く): 170343072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 31, 32, 36, 38, 48, 57, 62, 72, 76, 93, 96, 114, 124, 144, 152, 171, 186, 228, 248, 279, 288, 304, 342, 372, 456, 479, 496, 558, 589, 608, 684, 744, 912, 958, 992, 1116, 1178, 1368, 1437, 1488, 1767, 1824, 1916, 2232, 2356, 2736, 2874, 2976, 3534, 3832, 4311, 4464, 4712, 5301, 5472, 5748, 7068, 7664, 8622, 8928, 9101, 9424, 10602, 11496, 14136, 14849, 15328, 17244, 18202, 18848, 21204, 22992, 27303, 28272, 29698, 34488, 36404, 42408, 44547, 45984, 54606, 56544, 59396, 68976, 72808, 81909, 84816, 89094, 109212, 118792, 133641, 137952, 145616, 163818, 169632, 178188, 218424, 237584, 267282, 282131, 291232, 327636, 356376, 436848, 475168, 534564, 564262, 655272, 712752, 846393, 873696, 1069128, 1128524, 1310544, 1425504, 1692786, 2138256, 2257048, 2539179, 2621088, 3385572, 4276512, 4514096, 5078358, 6771144, 9028192, 10156716, 13542288, 20313432, 27084576, 40626864, 81253728]

約数ペア:

[(1, 81253728), (2, 40626864), (3, 27084576), (4, 20313432), (6, 13542288), (8, 10156716), (9, 9028192), (12, 6771144), (16, 5078358), (18, 4514096), (19, 4276512), (24, 3385572), (31, 2621088), (32, 2539179), (36, 2257048), (38, 2138256), (48, 1692786), (57, 1425504), (62, 1310544), (72, 1128524), (76, 1069128), (93, 873696), (96, 846393), (114, 712752), (124, 655272), (144, 564262), (152, 534564), (171, 475168), (186, 436848), (228, 356376), (248, 327636), (279, 291232), (288, 282131), (304, 267282), (342, 237584), (372, 218424), (456, 178188), (479, 169632), (496, 163818), (558, 145616), (589, 137952), (608, 133641), (684, 118792), (744, 109212), (912, 89094), (958, 84816), (992, 81909), (1116, 72808), (1178, 68976), (1368, 59396), (1437, 56544), (1488, 54606), (1767, 45984), (1824, 44547), (1916, 42408), (2232, 36404), (2356, 34488), (2736, 29698), (2874, 28272), (2976, 27303), (3534, 22992), (3832, 21204), (4311, 18848), (4464, 18202), (4712, 17244), (5301, 15328), (5472, 14849), (5748, 14136), (7068, 11496), (7664, 10602), (8622, 9424), (8928, 9101)]