64561000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:452

約数の個数: 128

約数和(自身を含む): 180610560

約数和(自身を除く): 116049560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 25, 28, 35, 40, 46, 50, 56, 70, 92, 100, 115, 125, 140, 161, 175, 184, 200, 230, 250, 280, 322, 350, 401, 460, 500, 575, 644, 700, 802, 805, 875, 920, 1000, 1150, 1288, 1400, 1604, 1610, 1750, 2005, 2300, 2807, 2875, 3208, 3220, 3500, 4010, 4025, 4600, 5614, 5750, 6440, 7000, 8020, 8050, 9223, 10025, 11228, 11500, 14035, 16040, 16100, 18446, 20050, 20125, 22456, 23000, 28070, 32200, 36892, 40100, 40250, 46115, 50125, 56140, 64561, 70175, 73784, 80200, 80500, 92230, 100250, 112280, 129122, 140350, 161000, 184460, 200500, 230575, 258244, 280700, 322805, 350875, 368920, 401000, 461150, 516488, 561400, 645610, 701750, 922300, 1152875, 1291220, 1403500, 1614025, 1844600, 2305750, 2582440, 2807000, 3228050, 4611500, 6456100, 8070125, 9223000, 12912200, 16140250, 32280500, 64561000]

約数ペア:

[(1, 64561000), (2, 32280500), (4, 16140250), (5, 12912200), (7, 9223000), (8, 8070125), (10, 6456100), (14, 4611500), (20, 3228050), (23, 2807000), (25, 2582440), (28, 2305750), (35, 1844600), (40, 1614025), (46, 1403500), (50, 1291220), (56, 1152875), (70, 922300), (92, 701750), (100, 645610), (115, 561400), (125, 516488), (140, 461150), (161, 401000), (175, 368920), (184, 350875), (200, 322805), (230, 280700), (250, 258244), (280, 230575), (322, 200500), (350, 184460), (401, 161000), (460, 140350), (500, 129122), (575, 112280), (644, 100250), (700, 92230), (802, 80500), (805, 80200), (875, 73784), (920, 70175), (1000, 64561), (1150, 56140), (1288, 50125), (1400, 46115), (1604, 40250), (1610, 40100), (1750, 36892), (2005, 32200), (2300, 28070), (2807, 23000), (2875, 22456), (3208, 20125), (3220, 20050), (3500, 18446), (4010, 16100), (4025, 16040), (4600, 14035), (5614, 11500), (5750, 11228), (6440, 10025), (7000, 9223), (8020, 8050)]