20163700

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{409}}^1$

素因数の和:469

約数の個数: 72

約数和(自身を含む): 48043800

約数和(自身を除く): 27880100

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 29, 34, 50, 58, 68, 85, 100, 116, 145, 170, 290, 340, 409, 425, 493, 580, 725, 818, 850, 986, 1450, 1636, 1700, 1972, 2045, 2465, 2900, 4090, 4930, 6953, 8180, 9860, 10225, 11861, 12325, 13906, 20450, 23722, 24650, 27812, 34765, 40900, 47444, 49300, 59305, 69530, 118610, 139060, 173825, 201637, 237220, 296525, 347650, 403274, 593050, 695300, 806548, 1008185, 1186100, 2016370, 4032740, 5040925, 10081850, 20163700]

約数ペア:

[(1, 20163700), (2, 10081850), (4, 5040925), (5, 4032740), (10, 2016370), (17, 1186100), (20, 1008185), (25, 806548), (29, 695300), (34, 593050), (50, 403274), (58, 347650), (68, 296525), (85, 237220), (100, 201637), (116, 173825), (145, 139060), (170, 118610), (290, 69530), (340, 59305), (409, 49300), (425, 47444), (493, 40900), (580, 34765), (725, 27812), (818, 24650), (850, 23722), (986, 20450), (1450, 13906), (1636, 12325), (1700, 11861), (1972, 10225), (2045, 9860), (2465, 8180), (2900, 6953), (4090, 4930)]