18535040

素因数分解:

$2^7\times 5^1\times {\mathrm{28961}}^1$

素因数の和:28980

約数の個数: 32

約数和(自身を含む): 44311860

約数和(自身を除く): 25776820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 28961, 57922, 115844, 144805, 231688, 289610, 463376, 579220, 926752, 1158440, 1853504, 2316880, 3707008, 4633760, 9267520, 18535040]

約数ペア:

[(1, 18535040), (2, 9267520), (4, 4633760), (5, 3707008), (8, 2316880), (10, 1853504), (16, 1158440), (20, 926752), (32, 579220), (40, 463376), (64, 289610), (80, 231688), (128, 144805), (160, 115844), (320, 57922), (640, 28961)]