509340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{653}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 1538208

約数和(自身を除く): 1028868

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, 653, 780, 1306, 1959, 2612, 3265, 3918, 6530, 7836, 8489, 9795, 13060, 16978, 19590, 25467, 33956, 39180, 42445, 50934, 84890, 101868, 127335, 169780, 254670, 509340]

約数ペア:

[(1, 509340), (2, 254670), (3, 169780), (4, 127335), (5, 101868), (6, 84890), (10, 50934), (12, 42445), (13, 39180), (15, 33956), (20, 25467), (26, 19590), (30, 16978), (39, 13060), (52, 9795), (60, 8489), (65, 7836), (78, 6530), (130, 3918), (156, 3265), (195, 2612), (260, 1959), (390, 1306), (653, 780)]