1980075

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{1553}}^1$

素因数の和:1583

約数の個数: 24

約数和(自身を含む): 3468528

約数和(自身を除く): 1488453

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 1553, 4659, 7765, 23295, 26401, 38825, 79203, 116475, 132005, 396015, 660025, 1980075]

約数ペア:

[(1, 1980075), (3, 660025), (5, 396015), (15, 132005), (17, 116475), (25, 79203), (51, 38825), (75, 26401), (85, 23295), (255, 7765), (425, 4659), (1275, 1553)]