20611228

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{557}}^1$

素因数の和:630

約数の個数: 36

約数和(自身を含む): 40825512

約数和(自身を除く): 20214284

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 116, 319, 557, 638, 841, 1114, 1276, 1682, 2228, 3364, 6127, 9251, 12254, 16153, 18502, 24508, 32306, 37004, 64612, 177683, 355366, 468437, 710732, 936874, 1873748, 5152807, 10305614, 20611228]

約数ペア:

[(1, 20611228), (2, 10305614), (4, 5152807), (11, 1873748), (22, 936874), (29, 710732), (44, 468437), (58, 355366), (116, 177683), (319, 64612), (557, 37004), (638, 32306), (841, 24508), (1114, 18502), (1276, 16153), (1682, 12254), (2228, 9251), (3364, 6127)]