78408915

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21163}}^1$

素因数の和:21203

約数の個数: 32

約数和(自身を含む): 142222080

約数和(自身を除く): 63813165

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 195, 247, 285, 741, 1235, 3705, 21163, 63489, 105815, 275119, 317445, 402097, 825357, 1206291, 1375595, 2010485, 4126785, 5227261, 6031455, 15681783, 26136305, 78408915]

約数ペア:

[(1, 78408915), (3, 26136305), (5, 15681783), (13, 6031455), (15, 5227261), (19, 4126785), (39, 2010485), (57, 1375595), (65, 1206291), (95, 825357), (195, 402097), (247, 317445), (285, 275119), (741, 105815), (1235, 63489), (3705, 21163)]