28491925

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1$

素因数の和:107

約数の個数: 72

約数和(自身を含む): 47621952

約数和(自身を除く): 19130027

約数列:

[1, 5, 7, 11, 19, 25, 35, 41, 55, 77, 95, 133, 175, 205, 209, 275, 287, 361, 385, 451, 475, 665, 779, 1025, 1045, 1435, 1463, 1805, 1925, 2255, 2527, 3157, 3325, 3895, 3971, 5225, 5453, 7175, 7315, 8569, 9025, 11275, 12635, 14801, 15785, 19475, 19855, 27265, 27797, 36575, 42845, 59983, 63175, 74005, 78925, 99275, 103607, 136325, 138985, 162811, 214225, 299915, 370025, 518035, 694925, 814055, 1139677, 1499575, 2590175, 4070275, 5698385, 28491925]

約数ペア:

[(1, 28491925), (5, 5698385), (7, 4070275), (11, 2590175), (19, 1499575), (25, 1139677), (35, 814055), (41, 694925), (55, 518035), (77, 370025), (95, 299915), (133, 214225), (175, 162811), (205, 138985), (209, 136325), (275, 103607), (287, 99275), (361, 78925), (385, 74005), (451, 63175), (475, 59983), (665, 42845), (779, 36575), (1025, 27797), (1045, 27265), (1435, 19855), (1463, 19475), (1805, 15785), (1925, 14801), (2255, 12635), (2527, 11275), (3157, 9025), (3325, 8569), (3895, 7315), (3971, 7175), (5225, 5453)]