19944925

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{797}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 33247872

約数和(自身を除く): 13302947

約数列:

[1, 5, 7, 11, 13, 25, 35, 55, 65, 77, 91, 143, 175, 275, 325, 385, 455, 715, 797, 1001, 1925, 2275, 3575, 3985, 5005, 5579, 8767, 10361, 19925, 25025, 27895, 43835, 51805, 61369, 72527, 113971, 139475, 219175, 259025, 306845, 362635, 569855, 797797, 1534225, 1813175, 2849275, 3988985, 19944925]

約数ペア:

[(1, 19944925), (5, 3988985), (7, 2849275), (11, 1813175), (13, 1534225), (25, 797797), (35, 569855), (55, 362635), (65, 306845), (77, 259025), (91, 219175), (143, 139475), (175, 113971), (275, 72527), (325, 61369), (385, 51805), (455, 43835), (715, 27895), (797, 25025), (1001, 19925), (1925, 10361), (2275, 8767), (3575, 5579), (3985, 5005)]