2040794405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{2909}}^1$

素因数の和:3221

約数の個数: 32

約数和(自身を含む): 2710350720

約数和(自身を除く): 669556315

約数列:

[1, 5, 13, 43, 65, 215, 251, 559, 1255, 2795, 2909, 3263, 10793, 14545, 16315, 37817, 53965, 125087, 140309, 189085, 625435, 701545, 730159, 1626131, 3650795, 8130655, 9492067, 31396837, 47460335, 156984185, 408158881, 2040794405]

約数ペア:

[(1, 2040794405), (5, 408158881), (13, 156984185), (43, 47460335), (65, 31396837), (215, 9492067), (251, 8130655), (559, 3650795), (1255, 1626131), (2795, 730159), (2909, 701545), (3263, 625435), (10793, 189085), (14545, 140309), (16315, 125087), (37817, 53965)]