287706040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{3463}}^1$

素因数の和:3572

約数の個数: 64

約数和(自身を含む): 678389760

約数和(自身を除く): 390683720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 67, 124, 134, 155, 248, 268, 310, 335, 536, 620, 670, 1240, 1340, 2077, 2680, 3463, 4154, 6926, 8308, 10385, 13852, 16616, 17315, 20770, 27704, 34630, 41540, 69260, 83080, 107353, 138520, 214706, 232021, 429412, 464042, 536765, 858824, 928084, 1073530, 1160105, 1856168, 2147060, 2320210, 4294120, 4640420, 7192651, 9280840, 14385302, 28770604, 35963255, 57541208, 71926510, 143853020, 287706040]

約数ペア:

[(1, 287706040), (2, 143853020), (4, 71926510), (5, 57541208), (8, 35963255), (10, 28770604), (20, 14385302), (31, 9280840), (40, 7192651), (62, 4640420), (67, 4294120), (124, 2320210), (134, 2147060), (155, 1856168), (248, 1160105), (268, 1073530), (310, 928084), (335, 858824), (536, 536765), (620, 464042), (670, 429412), (1240, 232021), (1340, 214706), (2077, 138520), (2680, 107353), (3463, 83080), (4154, 69260), (6926, 41540), (8308, 34630), (10385, 27704), (13852, 20770), (16616, 17315)]