13213720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25411}}^1$

素因数の和:25435

約数の個数: 32

約数和(自身を含む): 32019120

約数和(自身を除く): 18805400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 25411, 50822, 101644, 127055, 203288, 254110, 330343, 508220, 660686, 1016440, 1321372, 1651715, 2642744, 3303430, 6606860, 13213720]

約数ペア:

[(1, 13213720), (2, 6606860), (4, 3303430), (5, 2642744), (8, 1651715), (10, 1321372), (13, 1016440), (20, 660686), (26, 508220), (40, 330343), (52, 254110), (65, 203288), (104, 127055), (130, 101644), (260, 50822), (520, 25411)]