28197133040

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1\times {\mathrm{20441}}^1$

素因数の和:20898

約数の個数: 80

約数和(自身を含む): 67253525856

約数和(自身を除く): 39056392816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 401, 430, 688, 802, 860, 1604, 1720, 2005, 3208, 3440, 4010, 6416, 8020, 16040, 17243, 20441, 32080, 34486, 40882, 68972, 81764, 86215, 102205, 137944, 163528, 172430, 204410, 275888, 327056, 344860, 408820, 689720, 817640, 878963, 1379440, 1635280, 1757926, 3515852, 4394815, 7031704, 8196841, 8789630, 14063408, 16393682, 17579260, 32787364, 35158520, 40984205, 65574728, 70317040, 81968410, 131149456, 163936820, 327873640, 352464163, 655747280, 704928326, 1409856652, 1762320815, 2819713304, 3524641630, 5639426608, 7049283260, 14098566520, 28197133040]

約数ペア:

[(1, 28197133040), (2, 14098566520), (4, 7049283260), (5, 5639426608), (8, 3524641630), (10, 2819713304), (16, 1762320815), (20, 1409856652), (40, 704928326), (43, 655747280), (80, 352464163), (86, 327873640), (172, 163936820), (215, 131149456), (344, 81968410), (401, 70317040), (430, 65574728), (688, 40984205), (802, 35158520), (860, 32787364), (1604, 17579260), (1720, 16393682), (2005, 14063408), (3208, 8789630), (3440, 8196841), (4010, 7031704), (6416, 4394815), (8020, 3515852), (16040, 1757926), (17243, 1635280), (20441, 1379440), (32080, 878963), (34486, 817640), (40882, 689720), (68972, 408820), (81764, 344860), (86215, 327056), (102205, 275888), (137944, 204410), (163528, 172430)]