18388900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{373}}^1$

素因数の和:433

約数の個数: 72

約数和(自身を含む): 43825320

約数和(自身を除く): 25436420

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 29, 34, 50, 58, 68, 85, 100, 116, 145, 170, 290, 340, 373, 425, 493, 580, 725, 746, 850, 986, 1450, 1492, 1700, 1865, 1972, 2465, 2900, 3730, 4930, 6341, 7460, 9325, 9860, 10817, 12325, 12682, 18650, 21634, 24650, 25364, 31705, 37300, 43268, 49300, 54085, 63410, 108170, 126820, 158525, 183889, 216340, 270425, 317050, 367778, 540850, 634100, 735556, 919445, 1081700, 1838890, 3677780, 4597225, 9194450, 18388900]

約数ペア:

[(1, 18388900), (2, 9194450), (4, 4597225), (5, 3677780), (10, 1838890), (17, 1081700), (20, 919445), (25, 735556), (29, 634100), (34, 540850), (50, 367778), (58, 317050), (68, 270425), (85, 216340), (100, 183889), (116, 158525), (145, 126820), (170, 108170), (290, 63410), (340, 54085), (373, 49300), (425, 43268), (493, 37300), (580, 31705), (725, 25364), (746, 24650), (850, 21634), (986, 18650), (1450, 12682), (1492, 12325), (1700, 10817), (1865, 9860), (1972, 9325), (2465, 7460), (2900, 6341), (3730, 4930)]