221436040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{790843}}^1$

素因数の和:790861

約数の個数: 32

約数和(自身を含む): 569407680

約数和(自身を除く): 347971640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 790843, 1581686, 3163372, 3954215, 5535901, 6326744, 7908430, 11071802, 15816860, 22143604, 27679505, 31633720, 44287208, 55359010, 110718020, 221436040]

約数ペア:

[(1, 221436040), (2, 110718020), (4, 55359010), (5, 44287208), (7, 31633720), (8, 27679505), (10, 22143604), (14, 15816860), (20, 11071802), (28, 7908430), (35, 6326744), (40, 5535901), (56, 3954215), (70, 3163372), (140, 1581686), (280, 790843)]