20407811000

素因数分解:

$2^3\times 5^3\times {\mathrm{619}}^1\times {\mathrm{32969}}^1$

素因数の和:33609

約数の個数: 64

約数和(自身を含む): 47832876000

約数和(自身を除く): 27425065000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 619, 1000, 1238, 2476, 3095, 4952, 6190, 12380, 15475, 24760, 30950, 32969, 61900, 65938, 77375, 123800, 131876, 154750, 164845, 263752, 309500, 329690, 619000, 659380, 824225, 1318760, 1648450, 3296900, 4121125, 6593800, 8242250, 16484500, 20407811, 32969000, 40815622, 81631244, 102039055, 163262488, 204078110, 408156220, 510195275, 816312440, 1020390550, 2040781100, 2550976375, 4081562200, 5101952750, 10203905500, 20407811000]

約数ペア:

[(1, 20407811000), (2, 10203905500), (4, 5101952750), (5, 4081562200), (8, 2550976375), (10, 2040781100), (20, 1020390550), (25, 816312440), (40, 510195275), (50, 408156220), (100, 204078110), (125, 163262488), (200, 102039055), (250, 81631244), (500, 40815622), (619, 32969000), (1000, 20407811), (1238, 16484500), (2476, 8242250), (3095, 6593800), (4952, 4121125), (6190, 3296900), (12380, 1648450), (15475, 1318760), (24760, 824225), (30950, 659380), (32969, 619000), (61900, 329690), (65938, 309500), (77375, 263752), (123800, 164845), (131876, 154750)]