399888975

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{3469}}^1$

素因数の和:3564

約数の個数: 48

約数和(自身を含む): 697053600

約数和(自身を除く): 297164625

約数列:

[1, 3, 5, 15, 25, 29, 53, 75, 87, 145, 159, 265, 435, 725, 795, 1325, 1537, 2175, 3469, 3975, 4611, 7685, 10407, 17345, 23055, 38425, 52035, 86725, 100601, 115275, 183857, 260175, 301803, 503005, 551571, 919285, 1509015, 2515025, 2757855, 4596425, 5331853, 7545075, 13789275, 15995559, 26659265, 79977795, 133296325, 399888975]

約数ペア:

[(1, 399888975), (3, 133296325), (5, 79977795), (15, 26659265), (25, 15995559), (29, 13789275), (53, 7545075), (75, 5331853), (87, 4596425), (145, 2757855), (159, 2515025), (265, 1509015), (435, 919285), (725, 551571), (795, 503005), (1325, 301803), (1537, 260175), (2175, 183857), (3469, 115275), (3975, 100601), (4611, 86725), (7685, 52035), (10407, 38425), (17345, 23055)]