1288996864

素因数分解:

$2^{11}\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:389

約数の個数: 96

約数和(自身を含む): 2704665600

約数和(自身を除く): 1415668736

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 79, 124, 128, 158, 248, 256, 257, 316, 496, 512, 514, 632, 992, 1024, 1028, 1264, 1984, 2048, 2056, 2449, 2528, 3968, 4112, 4898, 5056, 7936, 7967, 8224, 9796, 10112, 15872, 15934, 16448, 19592, 20224, 20303, 31744, 31868, 32896, 39184, 40448, 40606, 63488, 63736, 65792, 78368, 80896, 81212, 127472, 131584, 156736, 161792, 162424, 254944, 263168, 313472, 324848, 509888, 526336, 626944, 629393, 649696, 1019776, 1253888, 1258786, 1299392, 2039552, 2507776, 2517572, 2598784, 4079104, 5015552, 5035144, 5197568, 8158208, 10070288, 10395136, 16316416, 20140576, 20790272, 40281152, 41580544, 80562304, 161124608, 322249216, 644498432, 1288996864]

約数ペア:

[(1, 1288996864), (2, 644498432), (4, 322249216), (8, 161124608), (16, 80562304), (31, 41580544), (32, 40281152), (62, 20790272), (64, 20140576), (79, 16316416), (124, 10395136), (128, 10070288), (158, 8158208), (248, 5197568), (256, 5035144), (257, 5015552), (316, 4079104), (496, 2598784), (512, 2517572), (514, 2507776), (632, 2039552), (992, 1299392), (1024, 1258786), (1028, 1253888), (1264, 1019776), (1984, 649696), (2048, 629393), (2056, 626944), (2449, 526336), (2528, 509888), (3968, 324848), (4112, 313472), (4898, 263168), (5056, 254944), (7936, 162424), (7967, 161792), (8224, 156736), (9796, 131584), (10112, 127472), (15872, 81212), (15934, 80896), (16448, 78368), (19592, 65792), (20224, 63736), (20303, 63488), (31744, 40606), (31868, 40448), (32896, 39184)]