20205664

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{199}}^1$

素因数の和:395

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 22130336

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 167, 199, 304, 334, 398, 608, 668, 796, 1336, 1592, 2672, 3173, 3184, 3781, 5344, 6346, 6368, 7562, 12692, 15124, 25384, 30248, 33233, 50768, 60496, 66466, 101536, 120992, 132932, 265864, 531728, 631427, 1063456, 1262854, 2525708, 5051416, 10102832, 20205664]

約数ペア:

[(1, 20205664), (2, 10102832), (4, 5051416), (8, 2525708), (16, 1262854), (19, 1063456), (32, 631427), (38, 531728), (76, 265864), (152, 132932), (167, 120992), (199, 101536), (304, 66466), (334, 60496), (398, 50768), (608, 33233), (668, 30248), (796, 25384), (1336, 15124), (1592, 12692), (2672, 7562), (3173, 6368), (3184, 6346), (3781, 5344)]