28241000

素因数分解:

$2^3\times 5^3\times {\mathrm{31}}^1\times {\mathrm{911}}^1$

素因数の和:963

約数の個数: 64

約数和(自身を含む): 68290560

約数和(自身を除く): 40049560

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 125, 155, 200, 248, 250, 310, 500, 620, 775, 911, 1000, 1240, 1550, 1822, 3100, 3644, 3875, 4555, 6200, 7288, 7750, 9110, 15500, 18220, 22775, 28241, 31000, 36440, 45550, 56482, 91100, 112964, 113875, 141205, 182200, 225928, 227750, 282410, 455500, 564820, 706025, 911000, 1129640, 1412050, 2824100, 3530125, 5648200, 7060250, 14120500, 28241000]

約数ペア:

[(1, 28241000), (2, 14120500), (4, 7060250), (5, 5648200), (8, 3530125), (10, 2824100), (20, 1412050), (25, 1129640), (31, 911000), (40, 706025), (50, 564820), (62, 455500), (100, 282410), (124, 227750), (125, 225928), (155, 182200), (200, 141205), (248, 113875), (250, 112964), (310, 91100), (500, 56482), (620, 45550), (775, 36440), (911, 31000), (1000, 28241), (1240, 22775), (1550, 18220), (1822, 15500), (3100, 9110), (3644, 7750), (3875, 7288), (4555, 6200)]