664628014720

素因数分解:

$2^7\times 5^1\times {\mathrm{1038481273}}^1$

素因数の和:1038481292

約数の個数: 32

約数和(自身を含む): 1588876349220

約数和(自身を除く): 924248334500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1038481273, 2076962546, 4153925092, 5192406365, 8307850184, 10384812730, 16615700368, 20769625460, 33231400736, 41539250920, 66462801472, 83078501840, 132925602944, 166157003680, 332314007360, 664628014720]

約数ペア:

[(1, 664628014720), (2, 332314007360), (4, 166157003680), (5, 132925602944), (8, 83078501840), (10, 66462801472), (16, 41539250920), (20, 33231400736), (32, 20769625460), (40, 16615700368), (64, 10384812730), (80, 8307850184), (128, 5192406365), (160, 4153925092), (320, 2076962546), (640, 1038481273)]