19774240

素因数分解:

$2^5\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1693}}^1$

素因数の和:1781

約数の個数: 48

約数和(自身を含む): 47384568

約数和(自身を除く): 27610328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 73, 80, 146, 160, 292, 365, 584, 730, 1168, 1460, 1693, 2336, 2920, 3386, 5840, 6772, 8465, 11680, 13544, 16930, 27088, 33860, 54176, 67720, 123589, 135440, 247178, 270880, 494356, 617945, 988712, 1235890, 1977424, 2471780, 3954848, 4943560, 9887120, 19774240]

約数ペア:

[(1, 19774240), (2, 9887120), (4, 4943560), (5, 3954848), (8, 2471780), (10, 1977424), (16, 1235890), (20, 988712), (32, 617945), (40, 494356), (73, 270880), (80, 247178), (146, 135440), (160, 123589), (292, 67720), (365, 54176), (584, 33860), (730, 27088), (1168, 16930), (1460, 13544), (1693, 11680), (2336, 8465), (2920, 6772), (3386, 5840)]