20779368448

素因数分解:

$2^{18}\times {\mathrm{31}}^1\times {\mathrm{2557}}^1$

素因数の和:2624

約数の個数: 76

約数和(自身を含む): 42916036672

約数和(自身を除く): 22136668224

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 992, 1024, 1984, 2048, 2557, 3968, 4096, 5114, 7936, 8192, 10228, 15872, 16384, 20456, 31744, 32768, 40912, 63488, 65536, 79267, 81824, 126976, 131072, 158534, 163648, 253952, 262144, 317068, 327296, 507904, 634136, 654592, 1015808, 1268272, 1309184, 2031616, 2536544, 2618368, 4063232, 5073088, 5236736, 8126464, 10146176, 10473472, 20292352, 20946944, 40584704, 41893888, 81169408, 83787776, 162338816, 167575552, 324677632, 335151104, 649355264, 670302208, 1298710528, 2597421056, 5194842112, 10389684224, 20779368448]

約数ペア:

[(1, 20779368448), (2, 10389684224), (4, 5194842112), (8, 2597421056), (16, 1298710528), (31, 670302208), (32, 649355264), (62, 335151104), (64, 324677632), (124, 167575552), (128, 162338816), (248, 83787776), (256, 81169408), (496, 41893888), (512, 40584704), (992, 20946944), (1024, 20292352), (1984, 10473472), (2048, 10146176), (2557, 8126464), (3968, 5236736), (4096, 5073088), (5114, 4063232), (7936, 2618368), (8192, 2536544), (10228, 2031616), (15872, 1309184), (16384, 1268272), (20456, 1015808), (31744, 654592), (32768, 634136), (40912, 507904), (63488, 327296), (65536, 317068), (79267, 262144), (81824, 253952), (126976, 163648), (131072, 158534)]