77191220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{9871}}^1$

素因数の和:9920

約数の個数: 48

約数和(自身を含む): 179117568

約数和(自身を除く): 101926348

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 3910, 7820, 9871, 19742, 39484, 49355, 98710, 167807, 197420, 227033, 335614, 454066, 671228, 839035, 908132, 1135165, 1678070, 2270330, 3356140, 3859561, 4540660, 7719122, 15438244, 19297805, 38595610, 77191220]

約数ペア:

[(1, 77191220), (2, 38595610), (4, 19297805), (5, 15438244), (10, 7719122), (17, 4540660), (20, 3859561), (23, 3356140), (34, 2270330), (46, 1678070), (68, 1135165), (85, 908132), (92, 839035), (115, 671228), (170, 454066), (230, 335614), (340, 227033), (391, 197420), (460, 167807), (782, 98710), (1564, 49355), (1955, 39484), (3910, 19742), (7820, 9871)]