18753800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7213}}^1$

素因数の和:7242

約数の個数: 48

約数和(自身を含む): 46963140

約数和(自身を除く): 28209340

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 7213, 14426, 28852, 36065, 57704, 72130, 93769, 144260, 180325, 187538, 288520, 360650, 375076, 468845, 721300, 750152, 937690, 1442600, 1875380, 2344225, 3750760, 4688450, 9376900, 18753800]

約数ペア:

[(1, 18753800), (2, 9376900), (4, 4688450), (5, 3750760), (8, 2344225), (10, 1875380), (13, 1442600), (20, 937690), (25, 750152), (26, 721300), (40, 468845), (50, 375076), (52, 360650), (65, 288520), (100, 187538), (104, 180325), (130, 144260), (200, 93769), (260, 72130), (325, 57704), (520, 36065), (650, 28852), (1300, 14426), (2600, 7213)]