64897840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{401}}^1$

素因数の和:455

約数の個数: 120

約数和(自身を含む): 183640032

約数和(自身を除く): 118742192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 238, 272, 280, 289, 340, 401, 476, 560, 578, 595, 680, 802, 952, 1156, 1190, 1360, 1445, 1604, 1904, 2005, 2023, 2312, 2380, 2807, 2890, 3208, 4010, 4046, 4624, 4760, 5614, 5780, 6416, 6817, 8020, 8092, 9520, 10115, 11228, 11560, 13634, 14035, 16040, 16184, 20230, 22456, 23120, 27268, 28070, 32080, 32368, 34085, 40460, 44912, 47719, 54536, 56140, 68170, 80920, 95438, 109072, 112280, 115889, 136340, 161840, 190876, 224560, 231778, 238595, 272680, 381752, 463556, 477190, 545360, 579445, 763504, 811223, 927112, 954380, 1158890, 1622446, 1854224, 1908760, 2317780, 3244892, 3817520, 4056115, 4635560, 6489784, 8112230, 9271120, 12979568, 16224460, 32448920, 64897840]

約数ペア:

[(1, 64897840), (2, 32448920), (4, 16224460), (5, 12979568), (7, 9271120), (8, 8112230), (10, 6489784), (14, 4635560), (16, 4056115), (17, 3817520), (20, 3244892), (28, 2317780), (34, 1908760), (35, 1854224), (40, 1622446), (56, 1158890), (68, 954380), (70, 927112), (80, 811223), (85, 763504), (112, 579445), (119, 545360), (136, 477190), (140, 463556), (170, 381752), (238, 272680), (272, 238595), (280, 231778), (289, 224560), (340, 190876), (401, 161840), (476, 136340), (560, 115889), (578, 112280), (595, 109072), (680, 95438), (802, 80920), (952, 68170), (1156, 56140), (1190, 54536), (1360, 47719), (1445, 44912), (1604, 40460), (1904, 34085), (2005, 32368), (2023, 32080), (2312, 28070), (2380, 27268), (2807, 23120), (2890, 22456), (3208, 20230), (4010, 16184), (4046, 16040), (4624, 14035), (4760, 13634), (5614, 11560), (5780, 11228), (6416, 10115), (6817, 9520), (8020, 8092)]