18540567040

素因数分解:

$2^9\times 5^1\times {\mathrm{7242409}}^1$

素因数の和:7242432

約数の個数: 40

約数和(自身を含む): 44453912580

約数和(自身を除く): 25913345540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 7242409, 14484818, 28969636, 36212045, 57939272, 72424090, 115878544, 144848180, 231757088, 289696360, 463514176, 579392720, 927028352, 1158785440, 1854056704, 2317570880, 3708113408, 4635141760, 9270283520, 18540567040]

約数ペア:

[(1, 18540567040), (2, 9270283520), (4, 4635141760), (5, 3708113408), (8, 2317570880), (10, 1854056704), (16, 1158785440), (20, 927028352), (32, 579392720), (40, 463514176), (64, 289696360), (80, 231757088), (128, 144848180), (160, 115878544), (256, 72424090), (320, 57939272), (512, 36212045), (640, 28969636), (1280, 14484818), (2560, 7242409)]