20948525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1499}}^1$

素因数の和:1565

約数の個数: 24

約数和(自身を含む): 28644000

約数和(自身を除く): 7695475

約数列:

[1, 5, 13, 25, 43, 65, 215, 325, 559, 1075, 1499, 2795, 7495, 13975, 19487, 37475, 64457, 97435, 322285, 487175, 837941, 1611425, 4189705, 20948525]

約数ペア:

[(1, 20948525), (5, 4189705), (13, 1611425), (25, 837941), (43, 487175), (65, 322285), (215, 97435), (325, 64457), (559, 37475), (1075, 19487), (1499, 13975), (2795, 7495)]