74721855

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{2797}}^1$

素因数の和:2955

約数の個数: 32

約数和(自身を含む): 129737664

約数和(自身を除く): 55015809

約数列:

[1, 3, 5, 13, 15, 39, 65, 137, 195, 411, 685, 1781, 2055, 2797, 5343, 8391, 8905, 13985, 26715, 36361, 41955, 109083, 181805, 383189, 545415, 1149567, 1915945, 4981457, 5747835, 14944371, 24907285, 74721855]

約数ペア:

[(1, 74721855), (3, 24907285), (5, 14944371), (13, 5747835), (15, 4981457), (39, 1915945), (65, 1149567), (137, 545415), (195, 383189), (411, 181805), (685, 109083), (1781, 41955), (2055, 36361), (2797, 26715), (5343, 13985), (8391, 8905)]