661725

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{173}}^1$

素因数の和:206

約数の個数: 36

約数和(自身を含む): 1262196

約数和(自身を除く): 600471

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 173, 225, 255, 425, 519, 765, 865, 1275, 1557, 2595, 2941, 3825, 4325, 7785, 8823, 12975, 14705, 26469, 38925, 44115, 73525, 132345, 220575, 661725]

約数ペア:

[(1, 661725), (3, 220575), (5, 132345), (9, 73525), (15, 44115), (17, 38925), (25, 26469), (45, 14705), (51, 12975), (75, 8823), (85, 7785), (153, 4325), (173, 3825), (225, 2941), (255, 2595), (425, 1557), (519, 1275), (765, 865)]