20868800

素因数分解:

$2^6\times 5^2\times {\mathrm{13043}}^1$

素因数の和:13065

約数の個数: 42

約数和(自身を含む): 51354228

約数和(自身を除く): 30485428

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 13043, 26086, 52172, 65215, 104344, 130430, 208688, 260860, 326075, 417376, 521720, 652150, 834752, 1043440, 1304300, 2086880, 2608600, 4173760, 5217200, 10434400, 20868800]

約数ペア:

[(1, 20868800), (2, 10434400), (4, 5217200), (5, 4173760), (8, 2608600), (10, 2086880), (16, 1304300), (20, 1043440), (25, 834752), (32, 652150), (40, 521720), (50, 417376), (64, 326075), (80, 260860), (100, 208688), (160, 130430), (200, 104344), (320, 65215), (400, 52172), (800, 26086), (1600, 13043)]