12978515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:227

約数の個数: 32

約数和(自身を含む): 17971200

約数和(自身を除く): 4992685

約数列:

[1, 5, 11, 29, 55, 79, 103, 145, 319, 395, 515, 869, 1133, 1595, 2291, 2987, 4345, 5665, 8137, 11455, 14935, 25201, 32857, 40685, 89507, 126005, 164285, 235973, 447535, 1179865, 2595703, 12978515]

約数ペア:

[(1, 12978515), (5, 2595703), (11, 1179865), (29, 447535), (55, 235973), (79, 164285), (103, 126005), (145, 89507), (319, 40685), (395, 32857), (515, 25201), (869, 14935), (1133, 11455), (1595, 8137), (2291, 5665), (2987, 4345)]