20996933200

素因数分解:

$2^4\times 5^2\times {\mathrm{193}}^1\times {\mathrm{271981}}^1$

素因数の和:272192

約数の個数: 60

約数和(自身を含む): 50706692188

約数和(自身を除く): 29709758988

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 193, 200, 386, 400, 772, 965, 1544, 1930, 3088, 3860, 4825, 7720, 9650, 15440, 19300, 38600, 77200, 271981, 543962, 1087924, 1359905, 2175848, 2719810, 4351696, 5439620, 6799525, 10879240, 13599050, 21758480, 27198100, 52492333, 54396200, 104984666, 108792400, 209969332, 262461665, 419938664, 524923330, 839877328, 1049846660, 1312308325, 2099693320, 2624616650, 4199386640, 5249233300, 10498466600, 20996933200]

約数ペア:

[(1, 20996933200), (2, 10498466600), (4, 5249233300), (5, 4199386640), (8, 2624616650), (10, 2099693320), (16, 1312308325), (20, 1049846660), (25, 839877328), (40, 524923330), (50, 419938664), (80, 262461665), (100, 209969332), (193, 108792400), (200, 104984666), (386, 54396200), (400, 52492333), (772, 27198100), (965, 21758480), (1544, 13599050), (1930, 10879240), (3088, 6799525), (3860, 5439620), (4825, 4351696), (7720, 2719810), (9650, 2175848), (15440, 1359905), (19300, 1087924), (38600, 543962), (77200, 271981)]