209968220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{136343}}^1$

素因数の和:136370

約数の個数: 48

約数和(自身を含む): 549739008

約数和(自身を除く): 339770788

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 136343, 272686, 545372, 681715, 954401, 1363430, 1499773, 1908802, 2726860, 2999546, 3817604, 4772005, 5999092, 7498865, 9544010, 10498411, 14997730, 19088020, 20996822, 29995460, 41993644, 52492055, 104984110, 209968220]

約数ペア:

[(1, 209968220), (2, 104984110), (4, 52492055), (5, 41993644), (7, 29995460), (10, 20996822), (11, 19088020), (14, 14997730), (20, 10498411), (22, 9544010), (28, 7498865), (35, 5999092), (44, 4772005), (55, 3817604), (70, 2999546), (77, 2726860), (110, 1908802), (140, 1499773), (154, 1363430), (220, 954401), (308, 681715), (385, 545372), (770, 272686), (1540, 136343)]