254404760

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{20717}}^1$

素因数の和:21035

約数の個数: 32

約数和(自身を含む): 574302960

約数和(自身を除く): 319898200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 6140, 12280, 20717, 41434, 82868, 103585, 165736, 207170, 414340, 828680, 6360119, 12720238, 25440476, 31800595, 50880952, 63601190, 127202380, 254404760]

約数ペア:

[(1, 254404760), (2, 127202380), (4, 63601190), (5, 50880952), (8, 31800595), (10, 25440476), (20, 12720238), (40, 6360119), (307, 828680), (614, 414340), (1228, 207170), (1535, 165736), (2456, 103585), (3070, 82868), (6140, 41434), (12280, 20717)]