218058280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{495587}}^1$

素因数の和:495609

約数の個数: 32

約数和(自身を含む): 535235040

約数和(自身を除く): 317176760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 495587, 991174, 1982348, 2477935, 3964696, 4955870, 5451457, 9911740, 10902914, 19823480, 21805828, 27257285, 43611656, 54514570, 109029140, 218058280]

約数ペア:

[(1, 218058280), (2, 109029140), (4, 54514570), (5, 43611656), (8, 27257285), (10, 21805828), (11, 19823480), (20, 10902914), (22, 9911740), (40, 5451457), (44, 4955870), (55, 3964696), (88, 2477935), (110, 1982348), (220, 991174), (440, 495587)]