18670850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{409}}^1$

素因数の和:515

約数の個数: 48

約数和(自身を含む): 38435040

約数和(自身を除く): 19764190

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 83, 110, 166, 275, 409, 415, 550, 818, 830, 913, 1826, 2045, 2075, 4090, 4150, 4499, 4565, 8998, 9130, 10225, 20450, 22495, 22825, 33947, 44990, 45650, 67894, 112475, 169735, 224950, 339470, 373417, 746834, 848675, 1697350, 1867085, 3734170, 9335425, 18670850]

約数ペア:

[(1, 18670850), (2, 9335425), (5, 3734170), (10, 1867085), (11, 1697350), (22, 848675), (25, 746834), (50, 373417), (55, 339470), (83, 224950), (110, 169735), (166, 112475), (275, 67894), (409, 45650), (415, 44990), (550, 33947), (818, 22825), (830, 22495), (913, 20450), (1826, 10225), (2045, 9130), (2075, 8998), (4090, 4565), (4150, 4499)]