311495340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{399353}}^1$

素因数の和:399378

約数の個数: 48

約数和(自身を含む): 939280608

約数和(自身を除く): 627785268

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 399353, 798706, 1198059, 1597412, 1996765, 2396118, 3993530, 4792236, 5191589, 5990295, 7987060, 10383178, 11980590, 15574767, 20766356, 23961180, 25957945, 31149534, 51915890, 62299068, 77873835, 103831780, 155747670, 311495340]

約数ペア:

[(1, 311495340), (2, 155747670), (3, 103831780), (4, 77873835), (5, 62299068), (6, 51915890), (10, 31149534), (12, 25957945), (13, 23961180), (15, 20766356), (20, 15574767), (26, 11980590), (30, 10383178), (39, 7987060), (52, 5990295), (60, 5191589), (65, 4792236), (78, 3993530), (130, 2396118), (156, 1996765), (195, 1597412), (260, 1198059), (390, 798706), (780, 399353)]