12645760

素因数分解:

$2^7\times 5^1\times {\mathrm{19759}}^1$

素因数の和:19778

約数の個数: 32

約数和(自身を含む): 30232800

約数和(自身を除く): 17587040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 19759, 39518, 79036, 98795, 158072, 197590, 316144, 395180, 632288, 790360, 1264576, 1580720, 2529152, 3161440, 6322880, 12645760]

約数ペア:

[(1, 12645760), (2, 6322880), (4, 3161440), (5, 2529152), (8, 1580720), (10, 1264576), (16, 790360), (20, 632288), (32, 395180), (40, 316144), (64, 197590), (80, 158072), (128, 98795), (160, 79036), (320, 39518), (640, 19759)]