65643520

素因数分解:

$2^{10}\times 5^1\times {\mathrm{12821}}^1$

素因数の和:12846

約数の個数: 44

約数和(自身を含む): 157479804

約数和(自身を除く): 91836284

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, 12821, 25642, 51284, 64105, 102568, 128210, 205136, 256420, 410272, 512840, 820544, 1025680, 1641088, 2051360, 3282176, 4102720, 6564352, 8205440, 13128704, 16410880, 32821760, 65643520]

約数ペア:

[(1, 65643520), (2, 32821760), (4, 16410880), (5, 13128704), (8, 8205440), (10, 6564352), (16, 4102720), (20, 3282176), (32, 2051360), (40, 1641088), (64, 1025680), (80, 820544), (128, 512840), (160, 410272), (256, 256420), (320, 205136), (512, 128210), (640, 102568), (1024, 64105), (1280, 51284), (2560, 25642), (5120, 12821)]