4000995

素因数分解:

$3^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:146

約数の個数: 48

約数和(自身を含む): 7469280

約数和(自身を除く): 3468285

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 81, 89, 111, 135, 185, 243, 267, 333, 405, 445, 555, 801, 999, 1215, 1335, 1665, 2403, 2997, 3293, 4005, 4995, 7209, 8991, 9879, 12015, 14985, 16465, 21627, 29637, 36045, 44955, 49395, 88911, 108135, 148185, 266733, 444555, 800199, 1333665, 4000995]

約数ペア:

[(1, 4000995), (3, 1333665), (5, 800199), (9, 444555), (15, 266733), (27, 148185), (37, 108135), (45, 88911), (81, 49395), (89, 44955), (111, 36045), (135, 29637), (185, 21627), (243, 16465), (267, 14985), (333, 12015), (405, 9879), (445, 8991), (555, 7209), (801, 4995), (999, 4005), (1215, 3293), (1335, 2997), (1665, 2403)]