249780388

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{1511}}^1$

素因数の和:1573

約数の個数: 72

約数和(自身を含む): 545880384

約数和(自身を除く): 296099996

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 143, 187, 221, 286, 289, 374, 442, 572, 578, 748, 884, 1156, 1511, 2431, 3022, 3179, 3757, 4862, 6044, 6358, 7514, 9724, 12716, 15028, 16621, 19643, 25687, 33242, 39286, 41327, 51374, 66484, 78572, 82654, 102748, 165308, 216073, 282557, 333931, 432146, 436679, 565114, 667862, 864292, 873358, 1130228, 1335724, 1746716, 3673241, 4803469, 5676827, 7346482, 9606938, 11353654, 14692964, 19213876, 22707308, 62445097, 124890194, 249780388]

約数ペア:

[(1, 249780388), (2, 124890194), (4, 62445097), (11, 22707308), (13, 19213876), (17, 14692964), (22, 11353654), (26, 9606938), (34, 7346482), (44, 5676827), (52, 4803469), (68, 3673241), (143, 1746716), (187, 1335724), (221, 1130228), (286, 873358), (289, 864292), (374, 667862), (442, 565114), (572, 436679), (578, 432146), (748, 333931), (884, 282557), (1156, 216073), (1511, 165308), (2431, 102748), (3022, 82654), (3179, 78572), (3757, 66484), (4862, 51374), (6044, 41327), (6358, 39286), (7514, 33242), (9724, 25687), (12716, 19643), (15028, 16621)]