18935552

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 42310800

約数和(自身を除く): 23375248

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 64, 68, 76, 128, 136, 152, 229, 256, 272, 304, 323, 458, 544, 608, 646, 916, 1088, 1216, 1292, 1832, 2176, 2432, 2584, 3664, 3893, 4351, 4352, 4864, 5168, 7328, 7786, 8702, 10336, 14656, 15572, 17404, 20672, 29312, 31144, 34808, 41344, 58624, 62288, 69616, 73967, 82688, 124576, 139232, 147934, 249152, 278464, 295868, 498304, 556928, 591736, 996608, 1113856, 1183472, 2366944, 4733888, 9467776, 18935552]

約数ペア:

[(1, 18935552), (2, 9467776), (4, 4733888), (8, 2366944), (16, 1183472), (17, 1113856), (19, 996608), (32, 591736), (34, 556928), (38, 498304), (64, 295868), (68, 278464), (76, 249152), (128, 147934), (136, 139232), (152, 124576), (229, 82688), (256, 73967), (272, 69616), (304, 62288), (323, 58624), (458, 41344), (544, 34808), (608, 31144), (646, 29312), (916, 20672), (1088, 17404), (1216, 15572), (1292, 14656), (1832, 10336), (2176, 8702), (2432, 7786), (2584, 7328), (3664, 5168), (3893, 4864), (4351, 4352)]