86987740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{2399}}^1$

素因数の和:2459

約数の個数: 72

約数和(自身を含む): 218332800

約数和(自身を除く): 131345060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 74, 98, 140, 148, 185, 196, 245, 259, 370, 490, 518, 740, 980, 1036, 1295, 1813, 2399, 2590, 3626, 4798, 5180, 7252, 9065, 9596, 11995, 16793, 18130, 23990, 33586, 36260, 47980, 67172, 83965, 88763, 117551, 167930, 177526, 235102, 335860, 355052, 443815, 470204, 587755, 621341, 887630, 1175510, 1242682, 1775260, 2351020, 2485364, 3106705, 4349387, 6213410, 8698774, 12426820, 17397548, 21746935, 43493870, 86987740]

約数ペア:

[(1, 86987740), (2, 43493870), (4, 21746935), (5, 17397548), (7, 12426820), (10, 8698774), (14, 6213410), (20, 4349387), (28, 3106705), (35, 2485364), (37, 2351020), (49, 1775260), (70, 1242682), (74, 1175510), (98, 887630), (140, 621341), (148, 587755), (185, 470204), (196, 443815), (245, 355052), (259, 335860), (370, 235102), (490, 177526), (518, 167930), (740, 117551), (980, 88763), (1036, 83965), (1295, 67172), (1813, 47980), (2399, 36260), (2590, 33586), (3626, 23990), (4798, 18130), (5180, 16793), (7252, 11995), (9065, 9596)]