18155680

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2141}}^1$

素因数の和:2209

約数の個数: 48

約数和(自身を含む): 43722504

約数和(自身を除く): 25566824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 106, 160, 212, 265, 424, 530, 848, 1060, 1696, 2120, 2141, 4240, 4282, 8480, 8564, 10705, 17128, 21410, 34256, 42820, 68512, 85640, 113473, 171280, 226946, 342560, 453892, 567365, 907784, 1134730, 1815568, 2269460, 3631136, 4538920, 9077840, 18155680]

約数ペア:

[(1, 18155680), (2, 9077840), (4, 4538920), (5, 3631136), (8, 2269460), (10, 1815568), (16, 1134730), (20, 907784), (32, 567365), (40, 453892), (53, 342560), (80, 226946), (106, 171280), (160, 113473), (212, 85640), (265, 68512), (424, 42820), (530, 34256), (848, 21410), (1060, 17128), (1696, 10705), (2120, 8564), (2141, 8480), (4240, 4282)]