20047520

素因数分解:

$2^5\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1171}}^1$

素因数の和:1293

約数の個数: 48

約数和(自身を含む): 47845728

約数和(自身を除く): 27798208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 107, 160, 214, 428, 535, 856, 1070, 1171, 1712, 2140, 2342, 3424, 4280, 4684, 5855, 8560, 9368, 11710, 17120, 18736, 23420, 37472, 46840, 93680, 125297, 187360, 250594, 501188, 626485, 1002376, 1252970, 2004752, 2505940, 4009504, 5011880, 10023760, 20047520]

約数ペア:

[(1, 20047520), (2, 10023760), (4, 5011880), (5, 4009504), (8, 2505940), (10, 2004752), (16, 1252970), (20, 1002376), (32, 626485), (40, 501188), (80, 250594), (107, 187360), (160, 125297), (214, 93680), (428, 46840), (535, 37472), (856, 23420), (1070, 18736), (1171, 17120), (1712, 11710), (2140, 9368), (2342, 8560), (3424, 5855), (4280, 4684)]