257642736

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{701}}^1$

素因数の和:775

約数の個数: 160

約数和(自身を含む): 779950080

約数和(自身を除く): 522307344

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 31, 38, 39, 48, 52, 57, 62, 76, 78, 93, 104, 114, 124, 152, 156, 186, 208, 228, 247, 248, 304, 312, 372, 403, 456, 494, 496, 589, 624, 701, 741, 744, 806, 912, 988, 1178, 1209, 1402, 1482, 1488, 1612, 1767, 1976, 2103, 2356, 2418, 2804, 2964, 3224, 3534, 3952, 4206, 4712, 4836, 5608, 5928, 6448, 7068, 7657, 8412, 9113, 9424, 9672, 11216, 11856, 13319, 14136, 15314, 16824, 18226, 19344, 21731, 22971, 26638, 27339, 28272, 30628, 33648, 36452, 39957, 43462, 45942, 53276, 54678, 61256, 65193, 72904, 79914, 86924, 91884, 106552, 109356, 122512, 130386, 145808, 159828, 173147, 173848, 183768, 213104, 218712, 260772, 282503, 319656, 346294, 347696, 367536, 412889, 437424, 519441, 521544, 565006, 639312, 692588, 825778, 847509, 1038882, 1043088, 1130012, 1238667, 1385176, 1651556, 1695018, 2077764, 2260024, 2477334, 2770352, 3303112, 3390036, 4155528, 4520048, 4954668, 5367557, 6606224, 6780072, 8311056, 9909336, 10735114, 13560144, 16102671, 19818672, 21470228, 32205342, 42940456, 64410684, 85880912, 128821368, 257642736]

約数ペア:

[(1, 257642736), (2, 128821368), (3, 85880912), (4, 64410684), (6, 42940456), (8, 32205342), (12, 21470228), (13, 19818672), (16, 16102671), (19, 13560144), (24, 10735114), (26, 9909336), (31, 8311056), (38, 6780072), (39, 6606224), (48, 5367557), (52, 4954668), (57, 4520048), (62, 4155528), (76, 3390036), (78, 3303112), (93, 2770352), (104, 2477334), (114, 2260024), (124, 2077764), (152, 1695018), (156, 1651556), (186, 1385176), (208, 1238667), (228, 1130012), (247, 1043088), (248, 1038882), (304, 847509), (312, 825778), (372, 692588), (403, 639312), (456, 565006), (494, 521544), (496, 519441), (589, 437424), (624, 412889), (701, 367536), (741, 347696), (744, 346294), (806, 319656), (912, 282503), (988, 260772), (1178, 218712), (1209, 213104), (1402, 183768), (1482, 173848), (1488, 173147), (1612, 159828), (1767, 145808), (1976, 130386), (2103, 122512), (2356, 109356), (2418, 106552), (2804, 91884), (2964, 86924), (3224, 79914), (3534, 72904), (3952, 65193), (4206, 61256), (4712, 54678), (4836, 53276), (5608, 45942), (5928, 43462), (6448, 39957), (7068, 36452), (7657, 33648), (8412, 30628), (9113, 28272), (9424, 27339), (9672, 26638), (11216, 22971), (11856, 21731), (13319, 19344), (14136, 18226), (15314, 16824)]