15240640

素因数分解:

$2^6\times 5^1\times {\mathrm{97}}^1\times {\mathrm{491}}^1$

素因数の和:605

約数の個数: 56

約数和(自身を含む): 36740592

約数和(自身を除く): 21499952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 160, 194, 320, 388, 485, 491, 776, 970, 982, 1552, 1940, 1964, 2455, 3104, 3880, 3928, 4910, 6208, 7760, 7856, 9820, 15520, 15712, 19640, 31040, 31424, 39280, 47627, 78560, 95254, 157120, 190508, 238135, 381016, 476270, 762032, 952540, 1524064, 1905080, 3048128, 3810160, 7620320, 15240640]

約数ペア:

[(1, 15240640), (2, 7620320), (4, 3810160), (5, 3048128), (8, 1905080), (10, 1524064), (16, 952540), (20, 762032), (32, 476270), (40, 381016), (64, 238135), (80, 190508), (97, 157120), (160, 95254), (194, 78560), (320, 47627), (388, 39280), (485, 31424), (491, 31040), (776, 19640), (970, 15712), (982, 15520), (1552, 9820), (1940, 7856), (1964, 7760), (2455, 6208), (3104, 4910), (3880, 3928)]