18380384

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:180

約数の個数: 72

約数和(自身を含む): 41023584

約数和(自身を除く): 22643200

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 47, 88, 94, 101, 121, 176, 188, 202, 242, 352, 376, 404, 484, 517, 752, 808, 968, 1034, 1111, 1504, 1616, 1936, 2068, 2222, 3232, 3872, 4136, 4444, 4747, 5687, 8272, 8888, 9494, 11374, 12221, 16544, 17776, 18988, 22748, 24442, 35552, 37976, 45496, 48884, 52217, 75952, 90992, 97768, 104434, 151904, 181984, 195536, 208868, 391072, 417736, 574387, 835472, 1148774, 1670944, 2297548, 4595096, 9190192, 18380384]

約数ペア:

[(1, 18380384), (2, 9190192), (4, 4595096), (8, 2297548), (11, 1670944), (16, 1148774), (22, 835472), (32, 574387), (44, 417736), (47, 391072), (88, 208868), (94, 195536), (101, 181984), (121, 151904), (176, 104434), (188, 97768), (202, 90992), (242, 75952), (352, 52217), (376, 48884), (404, 45496), (484, 37976), (517, 35552), (752, 24442), (808, 22748), (968, 18988), (1034, 17776), (1111, 16544), (1504, 12221), (1616, 11374), (1936, 9494), (2068, 8888), (2222, 8272), (3232, 5687), (3872, 4747), (4136, 4444)]