20136681472

素因数分解:

$2^{13}\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:575

約数の個数: 112

約数和(自身を含む): 41403117600

約数和(自身を除く): 21266436128

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 89, 128, 142, 178, 256, 284, 356, 389, 512, 568, 712, 778, 1024, 1136, 1424, 1556, 2048, 2272, 2848, 3112, 4096, 4544, 5696, 6224, 6319, 8192, 9088, 11392, 12448, 12638, 18176, 22784, 24896, 25276, 27619, 34621, 36352, 45568, 49792, 50552, 55238, 69242, 72704, 91136, 99584, 101104, 110476, 138484, 145408, 182272, 199168, 202208, 220952, 276968, 290816, 364544, 398336, 404416, 441904, 553936, 581632, 729088, 796672, 808832, 883808, 1107872, 1593344, 1617664, 1767616, 2215744, 2458091, 3186688, 3235328, 3535232, 4431488, 4916182, 6470656, 7070464, 8862976, 9832364, 12941312, 14140928, 17725952, 19664728, 25882624, 28281856, 35451904, 39329456, 51765248, 56563712, 70903808, 78658912, 113127424, 141807616, 157317824, 226254848, 283615232, 314635648, 629271296, 1258542592, 2517085184, 5034170368, 10068340736, 20136681472]

約数ペア:

[(1, 20136681472), (2, 10068340736), (4, 5034170368), (8, 2517085184), (16, 1258542592), (32, 629271296), (64, 314635648), (71, 283615232), (89, 226254848), (128, 157317824), (142, 141807616), (178, 113127424), (256, 78658912), (284, 70903808), (356, 56563712), (389, 51765248), (512, 39329456), (568, 35451904), (712, 28281856), (778, 25882624), (1024, 19664728), (1136, 17725952), (1424, 14140928), (1556, 12941312), (2048, 9832364), (2272, 8862976), (2848, 7070464), (3112, 6470656), (4096, 4916182), (4544, 4431488), (5696, 3535232), (6224, 3235328), (6319, 3186688), (8192, 2458091), (9088, 2215744), (11392, 1767616), (12448, 1617664), (12638, 1593344), (18176, 1107872), (22784, 883808), (24896, 808832), (25276, 796672), (27619, 729088), (34621, 581632), (36352, 553936), (45568, 441904), (49792, 404416), (50552, 398336), (55238, 364544), (69242, 290816), (72704, 276968), (91136, 220952), (99584, 202208), (101104, 199168), (110476, 182272), (138484, 145408)]