18378016

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{181}}^1$

素因数の和:377

約数の個数: 48

約数和(自身を含む): 38525760

約数和(自身を除く): 20147744

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 167, 181, 304, 334, 362, 608, 668, 724, 1336, 1448, 2672, 2896, 3173, 3439, 5344, 5792, 6346, 6878, 12692, 13756, 25384, 27512, 30227, 50768, 55024, 60454, 101536, 110048, 120908, 241816, 483632, 574313, 967264, 1148626, 2297252, 4594504, 9189008, 18378016]

約数ペア:

[(1, 18378016), (2, 9189008), (4, 4594504), (8, 2297252), (16, 1148626), (19, 967264), (32, 574313), (38, 483632), (76, 241816), (152, 120908), (167, 110048), (181, 101536), (304, 60454), (334, 55024), (362, 50768), (608, 30227), (668, 27512), (724, 25384), (1336, 13756), (1448, 12692), (2672, 6878), (2896, 6346), (3173, 5792), (3439, 5344)]