20807813900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{67187}}^1$

素因数の和:67383

約数の個数: 72

約数和(自身を含む): 47821730880

約数和(自身を除く): 27013916980

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 163, 190, 326, 380, 475, 652, 815, 950, 1630, 1900, 3097, 3260, 4075, 6194, 8150, 12388, 15485, 16300, 30970, 61940, 67187, 77425, 134374, 154850, 268748, 309700, 335935, 671870, 1276553, 1343740, 1679675, 2553106, 3359350, 5106212, 6382765, 6718700, 10951481, 12765530, 21902962, 25531060, 31913825, 43805924, 54757405, 63827650, 109514810, 127655300, 208078139, 219029620, 273787025, 416156278, 547574050, 832312556, 1040390695, 1095148100, 2080781390, 4161562780, 5201953475, 10403906950, 20807813900]

約数ペア:

[(1, 20807813900), (2, 10403906950), (4, 5201953475), (5, 4161562780), (10, 2080781390), (19, 1095148100), (20, 1040390695), (25, 832312556), (38, 547574050), (50, 416156278), (76, 273787025), (95, 219029620), (100, 208078139), (163, 127655300), (190, 109514810), (326, 63827650), (380, 54757405), (475, 43805924), (652, 31913825), (815, 25531060), (950, 21902962), (1630, 12765530), (1900, 10951481), (3097, 6718700), (3260, 6382765), (4075, 5106212), (6194, 3359350), (8150, 2553106), (12388, 1679675), (15485, 1343740), (16300, 1276553), (30970, 671870), (61940, 335935), (67187, 309700), (77425, 268748), (134374, 154850)]