1276407340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4909259}}^1$

素因数の和:4909281

約数の個数: 24

約数和(自身を含む): 2886644880

約数和(自身を除く): 1610237540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4909259, 9818518, 19637036, 24546295, 49092590, 63820367, 98185180, 127640734, 255281468, 319101835, 638203670, 1276407340]

約数ペア:

[(1, 1276407340), (2, 638203670), (4, 319101835), (5, 255281468), (10, 127640734), (13, 98185180), (20, 63820367), (26, 49092590), (52, 24546295), (65, 19637036), (130, 9818518), (260, 4909259)]