18981248

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:116

約数の個数: 128

約数和(自身を含む): 47809440

約数和(自身を除く): 28828192

約数列:

[1, 2, 4, 8, 11, 13, 16, 17, 22, 26, 32, 34, 44, 52, 61, 64, 68, 88, 104, 122, 128, 136, 143, 176, 187, 208, 221, 244, 272, 286, 352, 374, 416, 442, 488, 544, 572, 671, 704, 748, 793, 832, 884, 976, 1037, 1088, 1144, 1342, 1408, 1496, 1586, 1664, 1768, 1952, 2074, 2176, 2288, 2431, 2684, 2992, 3172, 3536, 3904, 4148, 4576, 4862, 5368, 5984, 6344, 7072, 7808, 8296, 8723, 9152, 9724, 10736, 11407, 11968, 12688, 13481, 14144, 16592, 17446, 18304, 19448, 21472, 22814, 23936, 25376, 26962, 28288, 33184, 34892, 38896, 42944, 45628, 50752, 53924, 66368, 69784, 77792, 85888, 91256, 101504, 107848, 132736, 139568, 148291, 155584, 182512, 215696, 279136, 296582, 311168, 365024, 431392, 558272, 593164, 730048, 862784, 1116544, 1186328, 1460096, 1725568, 2372656, 4745312, 9490624, 18981248]

約数ペア:

[(1, 18981248), (2, 9490624), (4, 4745312), (8, 2372656), (11, 1725568), (13, 1460096), (16, 1186328), (17, 1116544), (22, 862784), (26, 730048), (32, 593164), (34, 558272), (44, 431392), (52, 365024), (61, 311168), (64, 296582), (68, 279136), (88, 215696), (104, 182512), (122, 155584), (128, 148291), (136, 139568), (143, 132736), (176, 107848), (187, 101504), (208, 91256), (221, 85888), (244, 77792), (272, 69784), (286, 66368), (352, 53924), (374, 50752), (416, 45628), (442, 42944), (488, 38896), (544, 34892), (572, 33184), (671, 28288), (704, 26962), (748, 25376), (793, 23936), (832, 22814), (884, 21472), (976, 19448), (1037, 18304), (1088, 17446), (1144, 16592), (1342, 14144), (1408, 13481), (1496, 12688), (1586, 11968), (1664, 11407), (1768, 10736), (1952, 9724), (2074, 9152), (2176, 8723), (2288, 8296), (2431, 7808), (2684, 7072), (2992, 6344), (3172, 5984), (3536, 5368), (3904, 4862), (4148, 4576)]