20565558800

素因数分解:

$2^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1772893}}^1$

素因数の和:1772940

約数の個数: 60

約数和(自身を含む): 51112534020

約数和(自身を除く): 30546975220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 40, 50, 58, 80, 100, 116, 145, 200, 232, 290, 400, 464, 580, 725, 1160, 1450, 2320, 2900, 5800, 11600, 1772893, 3545786, 7091572, 8864465, 14183144, 17728930, 28366288, 35457860, 44322325, 51413897, 70915720, 88644650, 102827794, 141831440, 177289300, 205655588, 257069485, 354578600, 411311176, 514138970, 709157200, 822622352, 1028277940, 1285347425, 2056555880, 2570694850, 4113111760, 5141389700, 10282779400, 20565558800]

約数ペア:

[(1, 20565558800), (2, 10282779400), (4, 5141389700), (5, 4113111760), (8, 2570694850), (10, 2056555880), (16, 1285347425), (20, 1028277940), (25, 822622352), (29, 709157200), (40, 514138970), (50, 411311176), (58, 354578600), (80, 257069485), (100, 205655588), (116, 177289300), (145, 141831440), (200, 102827794), (232, 88644650), (290, 70915720), (400, 51413897), (464, 44322325), (580, 35457860), (725, 28366288), (1160, 17728930), (1450, 14183144), (2320, 8864465), (2900, 7091572), (5800, 3545786), (11600, 1772893)]