20195165

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:197

約数の個数: 32

約数和(自身を含む): 26611200

約数和(自身を除く): 6416035

約数列:

[1, 5, 29, 41, 43, 79, 145, 205, 215, 395, 1189, 1247, 1763, 2291, 3239, 3397, 5945, 6235, 8815, 11455, 16195, 16985, 51127, 93931, 98513, 139277, 255635, 469655, 492565, 696385, 4039033, 20195165]

約数ペア:

[(1, 20195165), (5, 4039033), (29, 696385), (41, 492565), (43, 469655), (79, 255635), (145, 139277), (205, 98513), (215, 93931), (395, 51127), (1189, 16985), (1247, 16195), (1763, 11455), (2291, 8815), (3239, 6235), (3397, 5945)]