20869125

素因数分解:

$3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:167

約数の個数: 64

約数和(自身を含む): 38188800

約数和(自身を除く): 17319675

約数列:

[1, 3, 5, 15, 19, 25, 29, 57, 75, 87, 95, 101, 125, 145, 285, 303, 375, 435, 475, 505, 551, 725, 1425, 1515, 1653, 1919, 2175, 2375, 2525, 2755, 2929, 3625, 5757, 7125, 7575, 8265, 8787, 9595, 10875, 12625, 13775, 14645, 28785, 37875, 41325, 43935, 47975, 55651, 68875, 73225, 143925, 166953, 206625, 219675, 239875, 278255, 366125, 719625, 834765, 1098375, 1391275, 4173825, 6956375, 20869125]

約数ペア:

[(1, 20869125), (3, 6956375), (5, 4173825), (15, 1391275), (19, 1098375), (25, 834765), (29, 719625), (57, 366125), (75, 278255), (87, 239875), (95, 219675), (101, 206625), (125, 166953), (145, 143925), (285, 73225), (303, 68875), (375, 55651), (435, 47975), (475, 43935), (505, 41325), (551, 37875), (725, 28785), (1425, 14645), (1515, 13775), (1653, 12625), (1919, 10875), (2175, 9595), (2375, 8787), (2525, 8265), (2755, 7575), (2929, 7125), (3625, 5757)]