20007883616

素因数分解:

$2^5\times 7^1\times {\mathrm{131}}^1\times {\mathrm{681839}}^1$

素因数の和:681987

約数の個数: 48

約数和(自身を含む): 45361451520

約数和(自身を除く): 25353567904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 131, 224, 262, 524, 917, 1048, 1834, 2096, 3668, 4192, 7336, 14672, 29344, 681839, 1363678, 2727356, 4772873, 5454712, 9545746, 10909424, 19091492, 21818848, 38182984, 76365968, 89320909, 152731936, 178641818, 357283636, 625246363, 714567272, 1250492726, 1429134544, 2500985452, 2858269088, 5001970904, 10003941808, 20007883616]

約数ペア:

[(1, 20007883616), (2, 10003941808), (4, 5001970904), (7, 2858269088), (8, 2500985452), (14, 1429134544), (16, 1250492726), (28, 714567272), (32, 625246363), (56, 357283636), (112, 178641818), (131, 152731936), (224, 89320909), (262, 76365968), (524, 38182984), (917, 21818848), (1048, 19091492), (1834, 10909424), (2096, 9545746), (3668, 5454712), (4192, 4772873), (7336, 2727356), (14672, 1363678), (29344, 681839)]