2149520

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{277}}^1$

素因数の和:387

約数の個数: 40

約数和(自身を含む): 5067384

約数和(自身を除く): 2917864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 277, 388, 485, 554, 776, 970, 1108, 1385, 1552, 1940, 2216, 2770, 3880, 4432, 5540, 7760, 11080, 22160, 26869, 53738, 107476, 134345, 214952, 268690, 429904, 537380, 1074760, 2149520]

約数ペア:

[(1, 2149520), (2, 1074760), (4, 537380), (5, 429904), (8, 268690), (10, 214952), (16, 134345), (20, 107476), (40, 53738), (80, 26869), (97, 22160), (194, 11080), (277, 7760), (388, 5540), (485, 4432), (554, 3880), (776, 2770), (970, 2216), (1108, 1940), (1385, 1552)]