20178852484

素因数分解:

$2^2\times 7^2\times {\mathrm{167}}^1\times {\mathrm{631}}^1\times {\mathrm{977}}^1$

素因数の和:1793

約数の個数: 72

約数和(自身を含む): 41432211072

約数和(自身を除く): 21253358588

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 167, 196, 334, 631, 668, 977, 1169, 1262, 1954, 2338, 2524, 3908, 4417, 4676, 6839, 8183, 8834, 13678, 16366, 17668, 27356, 30919, 32732, 47873, 61838, 95746, 105377, 123676, 163159, 191492, 210754, 326318, 421508, 616487, 652636, 737639, 1142113, 1232974, 1475278, 2284226, 2465948, 2950556, 4315409, 4568452, 5163473, 7994791, 8630818, 10326946, 15989582, 17261636, 20653892, 30207863, 31979164, 60415726, 102953329, 120831452, 205906658, 411813316, 720673303, 1441346606, 2882693212, 5044713121, 10089426242, 20178852484]

約数ペア:

[(1, 20178852484), (2, 10089426242), (4, 5044713121), (7, 2882693212), (14, 1441346606), (28, 720673303), (49, 411813316), (98, 205906658), (167, 120831452), (196, 102953329), (334, 60415726), (631, 31979164), (668, 30207863), (977, 20653892), (1169, 17261636), (1262, 15989582), (1954, 10326946), (2338, 8630818), (2524, 7994791), (3908, 5163473), (4417, 4568452), (4676, 4315409), (6839, 2950556), (8183, 2465948), (8834, 2284226), (13678, 1475278), (16366, 1232974), (17668, 1142113), (27356, 737639), (30919, 652636), (32732, 616487), (47873, 421508), (61838, 326318), (95746, 210754), (105377, 191492), (123676, 163159)]