18831230

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:305

約数の個数: 48

約数和(自身を含む): 37920960

約数和(自身を除く): 19089730

約数列:

[1, 2, 5, 10, 11, 22, 55, 79, 110, 121, 158, 197, 242, 394, 395, 605, 790, 869, 985, 1210, 1738, 1970, 2167, 4334, 4345, 8690, 9559, 10835, 15563, 19118, 21670, 23837, 31126, 47674, 47795, 77815, 95590, 119185, 155630, 171193, 238370, 342386, 855965, 1711930, 1883123, 3766246, 9415615, 18831230]

約数ペア:

[(1, 18831230), (2, 9415615), (5, 3766246), (10, 1883123), (11, 1711930), (22, 855965), (55, 342386), (79, 238370), (110, 171193), (121, 155630), (158, 119185), (197, 95590), (242, 77815), (394, 47795), (395, 47674), (605, 31126), (790, 23837), (869, 21670), (985, 19118), (1210, 15563), (1738, 10835), (1970, 9559), (2167, 8690), (4334, 4345)]