641372900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{4651}}^1$

素因数の和:4869

約数の個数: 72

約数和(自身を含む): 1599022656

約数和(自身を除く): 957649756

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 197, 350, 394, 700, 788, 985, 1379, 1970, 2758, 3940, 4651, 4925, 5516, 6895, 9302, 9850, 13790, 18604, 19700, 23255, 27580, 32557, 34475, 46510, 65114, 68950, 93020, 116275, 130228, 137900, 162785, 232550, 325570, 465100, 651140, 813925, 916247, 1627850, 1832494, 3255700, 3664988, 4581235, 6413729, 9162470, 12827458, 18324940, 22906175, 25654916, 32068645, 45812350, 64137290, 91624700, 128274580, 160343225, 320686450, 641372900]

約数ペア:

[(1, 641372900), (2, 320686450), (4, 160343225), (5, 128274580), (7, 91624700), (10, 64137290), (14, 45812350), (20, 32068645), (25, 25654916), (28, 22906175), (35, 18324940), (50, 12827458), (70, 9162470), (100, 6413729), (140, 4581235), (175, 3664988), (197, 3255700), (350, 1832494), (394, 1627850), (700, 916247), (788, 813925), (985, 651140), (1379, 465100), (1970, 325570), (2758, 232550), (3940, 162785), (4651, 137900), (4925, 130228), (5516, 116275), (6895, 93020), (9302, 68950), (9850, 65114), (13790, 46510), (18604, 34475), (19700, 32557), (23255, 27580)]