19850490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20051}}^1$

素因数の和:20075

約数の個数: 48

約数和(自身を含む): 56306016

約数和(自身を除く): 36455526

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 20051, 40102, 60153, 100255, 120306, 180459, 200510, 220561, 300765, 360918, 441122, 601530, 661683, 902295, 1102805, 1323366, 1804590, 1985049, 2205610, 3308415, 3970098, 6616830, 9925245, 19850490]

約数ペア:

[(1, 19850490), (2, 9925245), (3, 6616830), (5, 3970098), (6, 3308415), (9, 2205610), (10, 1985049), (11, 1804590), (15, 1323366), (18, 1102805), (22, 902295), (30, 661683), (33, 601530), (45, 441122), (55, 360918), (66, 300765), (90, 220561), (99, 200510), (110, 180459), (165, 120306), (198, 100255), (330, 60153), (495, 40102), (990, 20051)]