28895020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{647}}^1$

素因数の和:703

約数の個数: 96

約数和(自身を含む): 78382080

約数和(自身を除く): 49487060

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 29, 35, 44, 55, 58, 70, 77, 110, 116, 140, 145, 154, 203, 220, 290, 308, 319, 385, 406, 580, 638, 647, 770, 812, 1015, 1276, 1294, 1540, 1595, 2030, 2233, 2588, 3190, 3235, 4060, 4466, 4529, 6380, 6470, 7117, 8932, 9058, 11165, 12940, 14234, 18116, 18763, 22330, 22645, 28468, 35585, 37526, 44660, 45290, 49819, 71170, 75052, 90580, 93815, 99638, 131341, 142340, 187630, 199276, 206393, 249095, 262682, 375260, 412786, 498190, 525364, 656705, 825572, 996380, 1031965, 1313410, 1444751, 2063930, 2626820, 2889502, 4127860, 5779004, 7223755, 14447510, 28895020]

約数ペア:

[(1, 28895020), (2, 14447510), (4, 7223755), (5, 5779004), (7, 4127860), (10, 2889502), (11, 2626820), (14, 2063930), (20, 1444751), (22, 1313410), (28, 1031965), (29, 996380), (35, 825572), (44, 656705), (55, 525364), (58, 498190), (70, 412786), (77, 375260), (110, 262682), (116, 249095), (140, 206393), (145, 199276), (154, 187630), (203, 142340), (220, 131341), (290, 99638), (308, 93815), (319, 90580), (385, 75052), (406, 71170), (580, 49819), (638, 45290), (647, 44660), (770, 37526), (812, 35585), (1015, 28468), (1276, 22645), (1294, 22330), (1540, 18763), (1595, 18116), (2030, 14234), (2233, 12940), (2588, 11165), (3190, 9058), (3235, 8932), (4060, 7117), (4466, 6470), (4529, 6380)]