61781330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:435

約数の個数: 48

約数和(自身を含む): 121746240

約数和(自身を除く): 59964910

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 139, 169, 263, 278, 338, 526, 695, 845, 1315, 1390, 1690, 1807, 2630, 3419, 3614, 6838, 9035, 17095, 18070, 23491, 34190, 36557, 44447, 46982, 73114, 88894, 117455, 182785, 222235, 234910, 365570, 444470, 475241, 950482, 2376205, 4752410, 6178133, 12356266, 30890665, 61781330]

約数ペア:

[(1, 61781330), (2, 30890665), (5, 12356266), (10, 6178133), (13, 4752410), (26, 2376205), (65, 950482), (130, 475241), (139, 444470), (169, 365570), (263, 234910), (278, 222235), (338, 182785), (526, 117455), (695, 88894), (845, 73114), (1315, 46982), (1390, 44447), (1690, 36557), (1807, 34190), (2630, 23491), (3419, 18070), (3614, 17095), (6838, 9035)]