64701440

素因数分解:

$2^{10}\times 5^1\times {\mathrm{12637}}^1$

素因数の和:12662

約数の個数: 44

約数和(自身を含む): 155219916

約数和(自身を除く): 90518476

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 12637, 25274, 50548, 63185, 101096, 126370, 202192, 252740, 404384, 505480, 808768, 1010960, 1617536, 2021920, 3235072, 4043840, 6470144, 8087680, 12940288, 16175360, 32350720, 64701440]

約数ペア:

[(1, 64701440), (2, 32350720), (4, 16175360), (5, 12940288), (8, 8087680), (10, 6470144), (16, 4043840), (20, 3235072), (32, 2021920), (40, 1617536), (64, 1010960), (80, 808768), (128, 505480), (160, 404384), (256, 252740), (320, 202192), (512, 126370), (640, 101096), (1024, 63185), (1280, 50548), (2560, 25274), (5120, 12637)]