257388288

素因数分解:

$2^8\times 3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{569}}^1$

素因数の和:638

約数の個数: 144

約数和(自身を含む): 745651200

約数和(自身を除く): 488262912

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 31, 32, 38, 48, 57, 62, 64, 76, 93, 96, 114, 124, 128, 152, 186, 192, 228, 248, 256, 304, 372, 384, 456, 496, 569, 589, 608, 744, 768, 912, 992, 1138, 1178, 1216, 1488, 1707, 1767, 1824, 1984, 2276, 2356, 2432, 2976, 3414, 3534, 3648, 3968, 4552, 4712, 4864, 5952, 6828, 7068, 7296, 7936, 9104, 9424, 10811, 11904, 13656, 14136, 14592, 17639, 18208, 18848, 21622, 23808, 27312, 28272, 32433, 35278, 36416, 37696, 43244, 52917, 54624, 56544, 64866, 70556, 72832, 75392, 86488, 105834, 109248, 113088, 129732, 141112, 145664, 150784, 172976, 211668, 218496, 226176, 259464, 282224, 335141, 345952, 423336, 436992, 452352, 518928, 564448, 670282, 691904, 846672, 1005423, 1037856, 1128896, 1340564, 1383808, 1693344, 2010846, 2075712, 2257792, 2681128, 2767616, 3386688, 4021692, 4151424, 4515584, 5362256, 6773376, 8043384, 8302848, 10724512, 13546752, 16086768, 21449024, 32173536, 42898048, 64347072, 85796096, 128694144, 257388288]

約数ペア:

[(1, 257388288), (2, 128694144), (3, 85796096), (4, 64347072), (6, 42898048), (8, 32173536), (12, 21449024), (16, 16086768), (19, 13546752), (24, 10724512), (31, 8302848), (32, 8043384), (38, 6773376), (48, 5362256), (57, 4515584), (62, 4151424), (64, 4021692), (76, 3386688), (93, 2767616), (96, 2681128), (114, 2257792), (124, 2075712), (128, 2010846), (152, 1693344), (186, 1383808), (192, 1340564), (228, 1128896), (248, 1037856), (256, 1005423), (304, 846672), (372, 691904), (384, 670282), (456, 564448), (496, 518928), (569, 452352), (589, 436992), (608, 423336), (744, 345952), (768, 335141), (912, 282224), (992, 259464), (1138, 226176), (1178, 218496), (1216, 211668), (1488, 172976), (1707, 150784), (1767, 145664), (1824, 141112), (1984, 129732), (2276, 113088), (2356, 109248), (2432, 105834), (2976, 86488), (3414, 75392), (3534, 72832), (3648, 70556), (3968, 64866), (4552, 56544), (4712, 54624), (4864, 52917), (5952, 43244), (6828, 37696), (7068, 36416), (7296, 35278), (7936, 32433), (9104, 28272), (9424, 27312), (10811, 23808), (11904, 21622), (13656, 18848), (14136, 18208), (14592, 17639)]