257861890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^3\times {\mathrm{97}}^1$

素因数の和:165

約数の個数: 96

約数和(自身を含む): 558376560

約数和(自身を除く): 300514670

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 97, 110, 121, 130, 143, 169, 194, 242, 286, 338, 485, 605, 715, 845, 970, 1067, 1210, 1261, 1430, 1573, 1690, 1859, 2134, 2197, 2522, 3146, 3718, 4394, 5335, 6305, 7865, 9295, 10670, 10985, 11737, 12610, 13871, 15730, 16393, 18590, 20449, 21970, 23474, 24167, 27742, 32786, 40898, 48334, 58685, 69355, 81965, 102245, 117370, 120835, 138710, 152581, 163930, 180323, 204490, 213109, 241670, 265837, 305162, 360646, 426218, 531674, 762905, 901615, 1065545, 1329185, 1525810, 1803230, 1983553, 2131090, 2344199, 2658370, 3967106, 4688398, 9917765, 11720995, 19835530, 23441990, 25786189, 51572378, 128930945, 257861890]

約数ペア:

[(1, 257861890), (2, 128930945), (5, 51572378), (10, 25786189), (11, 23441990), (13, 19835530), (22, 11720995), (26, 9917765), (55, 4688398), (65, 3967106), (97, 2658370), (110, 2344199), (121, 2131090), (130, 1983553), (143, 1803230), (169, 1525810), (194, 1329185), (242, 1065545), (286, 901615), (338, 762905), (485, 531674), (605, 426218), (715, 360646), (845, 305162), (970, 265837), (1067, 241670), (1210, 213109), (1261, 204490), (1430, 180323), (1573, 163930), (1690, 152581), (1859, 138710), (2134, 120835), (2197, 117370), (2522, 102245), (3146, 81965), (3718, 69355), (4394, 58685), (5335, 48334), (6305, 40898), (7865, 32786), (9295, 27742), (10670, 24167), (10985, 23474), (11737, 21970), (12610, 20449), (13871, 18590), (15730, 16393)]