1528720

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:307

約数の個数: 40

約数和(自身を含む): 3609144

約数和(自身を除く): 2080424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 197, 388, 394, 485, 776, 788, 970, 985, 1552, 1576, 1940, 1970, 3152, 3880, 3940, 7760, 7880, 15760, 19109, 38218, 76436, 95545, 152872, 191090, 305744, 382180, 764360, 1528720]

約数ペア:

[(1, 1528720), (2, 764360), (4, 382180), (5, 305744), (8, 191090), (10, 152872), (16, 95545), (20, 76436), (40, 38218), (80, 19109), (97, 15760), (194, 7880), (197, 7760), (388, 3940), (394, 3880), (485, 3152), (776, 1970), (788, 1940), (970, 1576), (985, 1552)]