68411720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131561}}^1$

素因数の和:131585

約数の個数: 32

約数和(自身を含む): 165768120

約数和(自身を除く): 97356400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 131561, 263122, 526244, 657805, 1052488, 1315610, 1710293, 2631220, 3420586, 5262440, 6841172, 8551465, 13682344, 17102930, 34205860, 68411720]

約数ペア:

[(1, 68411720), (2, 34205860), (4, 17102930), (5, 13682344), (8, 8551465), (10, 6841172), (13, 5262440), (20, 3420586), (26, 2631220), (40, 1710293), (52, 1315610), (65, 1052488), (104, 657805), (130, 526244), (260, 263122), (520, 131561)]