20319325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{607}}^1$

素因数の和:733

約数の個数: 24

約数和(自身を含む): 27442688

約数和(自身を除く): 7123363

約数列:

[1, 5, 13, 25, 65, 103, 325, 515, 607, 1339, 2575, 3035, 6695, 7891, 15175, 33475, 39455, 62521, 197275, 312605, 812773, 1563025, 4063865, 20319325]

約数ペア:

[(1, 20319325), (5, 4063865), (13, 1563025), (25, 812773), (65, 312605), (103, 197275), (325, 62521), (515, 39455), (607, 33475), (1339, 15175), (2575, 7891), (3035, 6695)]