390702915

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{191}}^1\times {\mathrm{347}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 687937536

約数和(自身を除く): 297234621

約数列:

[1, 3, 5, 9, 15, 45, 131, 191, 347, 393, 573, 655, 955, 1041, 1179, 1719, 1735, 1965, 2865, 3123, 5205, 5895, 8595, 15615, 25021, 45457, 66277, 75063, 125105, 136371, 198831, 225189, 227285, 331385, 375315, 409113, 596493, 681855, 994155, 1125945, 2045565, 2982465, 8682287, 26046861, 43411435, 78140583, 130234305, 390702915]

約数ペア:

[(1, 390702915), (3, 130234305), (5, 78140583), (9, 43411435), (15, 26046861), (45, 8682287), (131, 2982465), (191, 2045565), (347, 1125945), (393, 994155), (573, 681855), (655, 596493), (955, 409113), (1041, 375315), (1179, 331385), (1719, 227285), (1735, 225189), (1965, 198831), (2865, 136371), (3123, 125105), (5205, 75063), (5895, 66277), (8595, 45457), (15615, 25021)]