18689248

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{379}}^1$

素因数の和:479

約数の個数: 48

約数和(自身を含む): 39070080

約数和(自身を除く): 20380832

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 67, 92, 134, 184, 268, 368, 379, 536, 736, 758, 1072, 1516, 1541, 2144, 3032, 3082, 6064, 6164, 8717, 12128, 12328, 17434, 24656, 25393, 34868, 49312, 50786, 69736, 101572, 139472, 203144, 278944, 406288, 584039, 812576, 1168078, 2336156, 4672312, 9344624, 18689248]

約数ペア:

[(1, 18689248), (2, 9344624), (4, 4672312), (8, 2336156), (16, 1168078), (23, 812576), (32, 584039), (46, 406288), (67, 278944), (92, 203144), (134, 139472), (184, 101572), (268, 69736), (368, 50786), (379, 49312), (536, 34868), (736, 25393), (758, 24656), (1072, 17434), (1516, 12328), (1541, 12128), (2144, 8717), (3032, 6164), (3082, 6064)]