217203420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{517151}}^1$

素因数の和:517170

約数の個数: 48

約数和(自身を含む): 695052288

約数和(自身を除く): 477848868

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, 517151, 1034302, 1551453, 2068604, 2585755, 3102906, 3620057, 5171510, 6205812, 7240114, 7757265, 10343020, 10860171, 14480228, 15514530, 18100285, 21720342, 31029060, 36200570, 43440684, 54300855, 72401140, 108601710, 217203420]

約数ペア:

[(1, 217203420), (2, 108601710), (3, 72401140), (4, 54300855), (5, 43440684), (6, 36200570), (7, 31029060), (10, 21720342), (12, 18100285), (14, 15514530), (15, 14480228), (20, 10860171), (21, 10343020), (28, 7757265), (30, 7240114), (35, 6205812), (42, 5171510), (60, 3620057), (70, 3102906), (84, 2585755), (105, 2068604), (140, 1551453), (210, 1034302), (420, 517151)]