20199290980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{367}}^1\times {\mathrm{2477}}^1$

素因数の和:2965

約数の個数: 96

約数和(自身を含む): 46879160832

約数和(自身を除く): 26679869852

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 367, 404, 505, 734, 1010, 1111, 1468, 1835, 2020, 2222, 2477, 3670, 4037, 4444, 4954, 5555, 7340, 8074, 9908, 11110, 12385, 16148, 20185, 22220, 24770, 27247, 37067, 40370, 49540, 54494, 74134, 80740, 108988, 136235, 148268, 185335, 250177, 272470, 370670, 407737, 500354, 544940, 741340, 815474, 909059, 1000708, 1250885, 1630948, 1818118, 2038685, 2501770, 2751947, 3636236, 4077370, 4545295, 5003540, 5503894, 8154740, 9090590, 9999649, 11007788, 13759735, 18181180, 19999298, 27519470, 39998596, 49998245, 55038940, 91814959, 99996490, 183629918, 199992980, 367259836, 459074795, 918149590, 1009964549, 1836299180, 2019929098, 4039858196, 5049822745, 10099645490, 20199290980]

約数ペア:

[(1, 20199290980), (2, 10099645490), (4, 5049822745), (5, 4039858196), (10, 2019929098), (11, 1836299180), (20, 1009964549), (22, 918149590), (44, 459074795), (55, 367259836), (101, 199992980), (110, 183629918), (202, 99996490), (220, 91814959), (367, 55038940), (404, 49998245), (505, 39998596), (734, 27519470), (1010, 19999298), (1111, 18181180), (1468, 13759735), (1835, 11007788), (2020, 9999649), (2222, 9090590), (2477, 8154740), (3670, 5503894), (4037, 5003540), (4444, 4545295), (4954, 4077370), (5555, 3636236), (7340, 2751947), (8074, 2501770), (9908, 2038685), (11110, 1818118), (12385, 1630948), (16148, 1250885), (20185, 1000708), (22220, 909059), (24770, 815474), (27247, 741340), (37067, 544940), (40370, 500354), (49540, 407737), (54494, 370670), (74134, 272470), (80740, 250177), (108988, 185335), (136235, 148268)]