389890000

素因数分解:

$2^4\times 5^4\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:462

約数の個数: 100

約数和(自身を含む): 954494464

約数和(自身を除く): 564604464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 127, 200, 250, 254, 307, 400, 500, 508, 614, 625, 635, 1000, 1016, 1228, 1250, 1270, 1535, 2000, 2032, 2456, 2500, 2540, 3070, 3175, 4912, 5000, 5080, 6140, 6350, 7675, 10000, 10160, 12280, 12700, 15350, 15875, 24560, 25400, 30700, 31750, 38375, 38989, 50800, 61400, 63500, 76750, 77978, 79375, 122800, 127000, 153500, 155956, 158750, 191875, 194945, 254000, 307000, 311912, 317500, 383750, 389890, 614000, 623824, 635000, 767500, 779780, 974725, 1270000, 1535000, 1559560, 1949450, 3070000, 3119120, 3898900, 4873625, 7797800, 9747250, 15595600, 19494500, 24368125, 38989000, 48736250, 77978000, 97472500, 194945000, 389890000]

約数ペア:

[(1, 389890000), (2, 194945000), (4, 97472500), (5, 77978000), (8, 48736250), (10, 38989000), (16, 24368125), (20, 19494500), (25, 15595600), (40, 9747250), (50, 7797800), (80, 4873625), (100, 3898900), (125, 3119120), (127, 3070000), (200, 1949450), (250, 1559560), (254, 1535000), (307, 1270000), (400, 974725), (500, 779780), (508, 767500), (614, 635000), (625, 623824), (635, 614000), (1000, 389890), (1016, 383750), (1228, 317500), (1250, 311912), (1270, 307000), (1535, 254000), (2000, 194945), (2032, 191875), (2456, 158750), (2500, 155956), (2540, 153500), (3070, 127000), (3175, 122800), (4912, 79375), (5000, 77978), (5080, 76750), (6140, 63500), (6350, 61400), (7675, 50800), (10000, 38989), (10160, 38375), (12280, 31750), (12700, 30700), (15350, 25400), (15875, 24560)]