20065305

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2393}}^1$

素因数の和:2457

約数の個数: 32

約数和(自身を含む): 35392896

約数和(自身を除く): 15327591

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 559, 645, 1677, 2393, 2795, 7179, 8385, 11965, 31109, 35895, 93327, 102899, 155545, 308697, 466635, 514495, 1337687, 1543485, 4013061, 6688435, 20065305]

約数ペア:

[(1, 20065305), (3, 6688435), (5, 4013061), (13, 1543485), (15, 1337687), (39, 514495), (43, 466635), (65, 308697), (129, 155545), (195, 102899), (215, 93327), (559, 35895), (645, 31109), (1677, 11965), (2393, 8385), (2795, 7179)]