131257140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{312517}}^1$

素因数の和:312536

約数の個数: 48

約数和(自身を含む): 420024192

約数和(自身を除く): 288767052

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 312517, 625034, 937551, 1250068, 1562585, 1875102, 2187619, 3125170, 3750204, 4375238, 4687755, 6250340, 6562857, 8750476, 9375510, 10938095, 13125714, 18751020, 21876190, 26251428, 32814285, 43752380, 65628570, 131257140]

約数ペア:

[(1, 131257140), (2, 65628570), (3, 43752380), (4, 32814285), (5, 26251428), (6, 21876190), (7, 18751020), (10, 13125714), (12, 10938095), (14, 9375510), (15, 8750476), (20, 6562857), (21, 6250340), (28, 4687755), (30, 4375238), (35, 3750204), (42, 3125170), (60, 2187619), (70, 1875102), (84, 1562585), (105, 1250068), (140, 937551), (210, 625034), (420, 312517)]