256219712

素因数分解:

$2^6\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{971}}^1$

素因数の和:1040

約数の個数: 112

約数和(自身を含む): 632033280

約数和(自身を除く): 375813568

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 31, 32, 38, 56, 62, 64, 76, 112, 124, 133, 152, 217, 224, 248, 266, 304, 434, 448, 496, 532, 589, 608, 868, 971, 992, 1064, 1178, 1216, 1736, 1942, 1984, 2128, 2356, 3472, 3884, 4123, 4256, 4712, 6797, 6944, 7768, 8246, 8512, 9424, 13594, 13888, 15536, 16492, 18449, 18848, 27188, 30101, 31072, 32984, 36898, 37696, 54376, 60202, 62144, 65968, 73796, 108752, 120404, 129143, 131936, 147592, 210707, 217504, 240808, 258286, 263872, 295184, 421414, 435008, 481616, 516572, 571919, 590368, 842828, 963232, 1033144, 1143838, 1180736, 1685656, 1926464, 2066288, 2287676, 3371312, 4003433, 4132576, 4575352, 6742624, 8006866, 8265152, 9150704, 13485248, 16013732, 18301408, 32027464, 36602816, 64054928, 128109856, 256219712]

約数ペア:

[(1, 256219712), (2, 128109856), (4, 64054928), (7, 36602816), (8, 32027464), (14, 18301408), (16, 16013732), (19, 13485248), (28, 9150704), (31, 8265152), (32, 8006866), (38, 6742624), (56, 4575352), (62, 4132576), (64, 4003433), (76, 3371312), (112, 2287676), (124, 2066288), (133, 1926464), (152, 1685656), (217, 1180736), (224, 1143838), (248, 1033144), (266, 963232), (304, 842828), (434, 590368), (448, 571919), (496, 516572), (532, 481616), (589, 435008), (608, 421414), (868, 295184), (971, 263872), (992, 258286), (1064, 240808), (1178, 217504), (1216, 210707), (1736, 147592), (1942, 131936), (1984, 129143), (2128, 120404), (2356, 108752), (3472, 73796), (3884, 65968), (4123, 62144), (4256, 60202), (4712, 54376), (6797, 37696), (6944, 36898), (7768, 32984), (8246, 31072), (8512, 30101), (9424, 27188), (13594, 18848), (13888, 18449), (15536, 16492)]