51691875

素因数分解:

$3^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{1451}}^1$

素因数の和:1493

約数の個数: 40

約数和(自身を含む): 90720960

約数和(自身を除く): 39029085

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 125, 285, 375, 475, 625, 1425, 1451, 1875, 2375, 4353, 7125, 7255, 11875, 21765, 27569, 35625, 36275, 82707, 108825, 137845, 181375, 413535, 544125, 689225, 906875, 2067675, 2720625, 3446125, 10338375, 17230625, 51691875]

約数ペア:

[(1, 51691875), (3, 17230625), (5, 10338375), (15, 3446125), (19, 2720625), (25, 2067675), (57, 906875), (75, 689225), (95, 544125), (125, 413535), (285, 181375), (375, 137845), (475, 108825), (625, 82707), (1425, 36275), (1451, 35625), (1875, 27569), (2375, 21765), (4353, 11875), (7125, 7255)]