19044025

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{761}}^1$

素因数の和:802

約数の個数: 48

約数和(自身を含む): 31747968

約数和(自身を除く): 12703943

約数列:

[1, 5, 7, 11, 13, 25, 35, 55, 65, 77, 91, 143, 175, 275, 325, 385, 455, 715, 761, 1001, 1925, 2275, 3575, 3805, 5005, 5327, 8371, 9893, 19025, 25025, 26635, 41855, 49465, 58597, 69251, 108823, 133175, 209275, 247325, 292985, 346255, 544115, 761761, 1464925, 1731275, 2720575, 3808805, 19044025]

約数ペア:

[(1, 19044025), (5, 3808805), (7, 2720575), (11, 1731275), (13, 1464925), (25, 761761), (35, 544115), (55, 346255), (65, 292985), (77, 247325), (91, 209275), (143, 133175), (175, 108823), (275, 69251), (325, 58597), (385, 49465), (455, 41855), (715, 26635), (761, 25025), (1001, 19025), (1925, 9893), (2275, 8371), (3575, 5327), (3805, 5005)]