213089140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{10883}}^1$

素因数の和:10992

約数の個数: 48

約数和(自身を含む): 493698240

約数和(自身を除く): 280609100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4895, 9790, 10883, 19580, 21766, 43532, 54415, 108830, 119713, 217660, 239426, 478852, 598565, 968587, 1197130, 1937174, 2394260, 3874348, 4842935, 9685870, 10654457, 19371740, 21308914, 42617828, 53272285, 106544570, 213089140]

約数ペア:

[(1, 213089140), (2, 106544570), (4, 53272285), (5, 42617828), (10, 21308914), (11, 19371740), (20, 10654457), (22, 9685870), (44, 4842935), (55, 3874348), (89, 2394260), (110, 1937174), (178, 1197130), (220, 968587), (356, 598565), (445, 478852), (890, 239426), (979, 217660), (1780, 119713), (1958, 108830), (3916, 54415), (4895, 43532), (9790, 21766), (10883, 19580)]