1291272775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{2647}}^1$

素因数の和:2768

約数の個数: 48

約数和(自身を含む): 1838771200

約数和(自身を除く): 547498425

約数列:

[1, 5, 13, 19, 25, 65, 79, 95, 247, 325, 395, 475, 1027, 1235, 1501, 1975, 2647, 5135, 6175, 7505, 13235, 19513, 25675, 34411, 37525, 50293, 66175, 97565, 172055, 209113, 251465, 487825, 653809, 860275, 1045565, 1257325, 2718469, 3269045, 3973147, 5227825, 13592345, 16345225, 19865735, 51650911, 67961725, 99328675, 258254555, 1291272775]

約数ペア:

[(1, 1291272775), (5, 258254555), (13, 99328675), (19, 67961725), (25, 51650911), (65, 19865735), (79, 16345225), (95, 13592345), (247, 5227825), (325, 3973147), (395, 3269045), (475, 2718469), (1027, 1257325), (1235, 1045565), (1501, 860275), (1975, 653809), (2647, 487825), (5135, 251465), (6175, 209113), (7505, 172055), (13235, 97565), (19513, 66175), (25675, 50293), (34411, 37525)]