129643520

素因数分解:

$2^{10}\times 5^1\times {\mathrm{25321}}^1$

素因数の和:25346

約数の個数: 44

約数和(自身を含む): 311004804

約数和(自身を除く): 181361284

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, 25321, 50642, 101284, 126605, 202568, 253210, 405136, 506420, 810272, 1012840, 1620544, 2025680, 3241088, 4051360, 6482176, 8102720, 12964352, 16205440, 25928704, 32410880, 64821760, 129643520]

約数ペア:

[(1, 129643520), (2, 64821760), (4, 32410880), (5, 25928704), (8, 16205440), (10, 12964352), (16, 8102720), (20, 6482176), (32, 4051360), (40, 3241088), (64, 2025680), (80, 1620544), (128, 1012840), (160, 810272), (256, 506420), (320, 405136), (512, 253210), (640, 202568), (1024, 126605), (1280, 101284), (2560, 50642), (5120, 25321)]