218431728

素因数分解:

$2^4\times 3^6\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:394

約数の個数: 140

約数和(自身を含む): 647029768

約数和(自身を除く): 428598040

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 61, 72, 81, 108, 122, 144, 162, 183, 216, 243, 244, 307, 324, 366, 432, 486, 488, 549, 614, 648, 729, 732, 921, 972, 976, 1098, 1228, 1296, 1458, 1464, 1647, 1842, 1944, 2196, 2456, 2763, 2916, 2928, 3294, 3684, 3888, 4392, 4912, 4941, 5526, 5832, 6588, 7368, 8289, 8784, 9882, 11052, 11664, 13176, 14736, 14823, 16578, 18727, 19764, 22104, 24867, 26352, 29646, 33156, 37454, 39528, 44208, 44469, 49734, 56181, 59292, 66312, 74601, 74908, 79056, 88938, 99468, 112362, 118584, 132624, 149202, 149816, 168543, 177876, 198936, 223803, 224724, 237168, 298404, 299632, 337086, 355752, 397872, 447606, 449448, 505629, 596808, 674172, 711504, 895212, 898896, 1011258, 1193616, 1348344, 1516887, 1790424, 2022516, 2696688, 3033774, 3580848, 4045032, 4550661, 6067548, 8090064, 9101322, 12135096, 13651983, 18202644, 24270192, 27303966, 36405288, 54607932, 72810576, 109215864, 218431728]

約数ペア:

[(1, 218431728), (2, 109215864), (3, 72810576), (4, 54607932), (6, 36405288), (8, 27303966), (9, 24270192), (12, 18202644), (16, 13651983), (18, 12135096), (24, 9101322), (27, 8090064), (36, 6067548), (48, 4550661), (54, 4045032), (61, 3580848), (72, 3033774), (81, 2696688), (108, 2022516), (122, 1790424), (144, 1516887), (162, 1348344), (183, 1193616), (216, 1011258), (243, 898896), (244, 895212), (307, 711504), (324, 674172), (366, 596808), (432, 505629), (486, 449448), (488, 447606), (549, 397872), (614, 355752), (648, 337086), (729, 299632), (732, 298404), (921, 237168), (972, 224724), (976, 223803), (1098, 198936), (1228, 177876), (1296, 168543), (1458, 149816), (1464, 149202), (1647, 132624), (1842, 118584), (1944, 112362), (2196, 99468), (2456, 88938), (2763, 79056), (2916, 74908), (2928, 74601), (3294, 66312), (3684, 59292), (3888, 56181), (4392, 49734), (4912, 44469), (4941, 44208), (5526, 39528), (5832, 37454), (6588, 33156), (7368, 29646), (8289, 26352), (8784, 24867), (9882, 22104), (11052, 19764), (11664, 18727), (13176, 16578), (14736, 14823)]