20565760

素因数分解:

$2^8\times 5^1\times {\mathrm{16067}}^1$

素因数の和:16088

約数の個数: 36

約数和(自身を含む): 49264488

約数和(自身を除く): 28698728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 16067, 32134, 64268, 80335, 128536, 160670, 257072, 321340, 514144, 642680, 1028288, 1285360, 2056576, 2570720, 4113152, 5141440, 10282880, 20565760]

約数ペア:

[(1, 20565760), (2, 10282880), (4, 5141440), (5, 4113152), (8, 2570720), (10, 2056576), (16, 1285360), (20, 1028288), (32, 642680), (40, 514144), (64, 321340), (80, 257072), (128, 160670), (160, 128536), (256, 80335), (320, 64268), (640, 32134), (1280, 16067)]