68157440

素因数分解:

$2^{20}\times 5^1\times {\mathrm{13}}^1$

素因数の和:58

約数の個数: 84

約数和(自身を含む): 176160684

約数和(自身を除く): 108003244

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 512, 520, 640, 832, 1024, 1040, 1280, 1664, 2048, 2080, 2560, 3328, 4096, 4160, 5120, 6656, 8192, 8320, 10240, 13312, 16384, 16640, 20480, 26624, 32768, 33280, 40960, 53248, 65536, 66560, 81920, 106496, 131072, 133120, 163840, 212992, 262144, 266240, 327680, 425984, 524288, 532480, 655360, 851968, 1048576, 1064960, 1310720, 1703936, 2129920, 2621440, 3407872, 4259840, 5242880, 6815744, 8519680, 13631488, 17039360, 34078720, 68157440]

約数ペア:

[(1, 68157440), (2, 34078720), (4, 17039360), (5, 13631488), (8, 8519680), (10, 6815744), (13, 5242880), (16, 4259840), (20, 3407872), (26, 2621440), (32, 2129920), (40, 1703936), (52, 1310720), (64, 1064960), (65, 1048576), (80, 851968), (104, 655360), (128, 532480), (130, 524288), (160, 425984), (208, 327680), (256, 266240), (260, 262144), (320, 212992), (416, 163840), (512, 133120), (520, 131072), (640, 106496), (832, 81920), (1024, 66560), (1040, 65536), (1280, 53248), (1664, 40960), (2048, 33280), (2080, 32768), (2560, 26624), (3328, 20480), (4096, 16640), (4160, 16384), (5120, 13312), (6656, 10240), (8192, 8320)]