20218993928

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{268841}}^1$

素因数の和:268950

約数の個数: 64

約数和(自身を含む): 46455897600

約数和(自身を除く): 26236903672

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 79, 119, 136, 158, 238, 316, 476, 553, 632, 952, 1106, 1343, 2212, 2686, 4424, 5372, 9401, 10744, 18802, 37604, 75208, 268841, 537682, 1075364, 1881887, 2150728, 3763774, 4570297, 7527548, 9140594, 15055096, 18281188, 21238439, 31992079, 36562376, 42476878, 63984158, 84953756, 127968316, 148669073, 169907512, 255936632, 297338146, 361053463, 594676292, 722106926, 1189352584, 1444213852, 2527374241, 2888427704, 5054748482, 10109496964, 20218993928]

約数ペア:

[(1, 20218993928), (2, 10109496964), (4, 5054748482), (7, 2888427704), (8, 2527374241), (14, 1444213852), (17, 1189352584), (28, 722106926), (34, 594676292), (56, 361053463), (68, 297338146), (79, 255936632), (119, 169907512), (136, 148669073), (158, 127968316), (238, 84953756), (316, 63984158), (476, 42476878), (553, 36562376), (632, 31992079), (952, 21238439), (1106, 18281188), (1343, 15055096), (2212, 9140594), (2686, 7527548), (4424, 4570297), (5372, 3763774), (9401, 2150728), (10744, 1881887), (18802, 1075364), (37604, 537682), (75208, 268841)]