2005040220880

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{443}}^1\times {\mathrm{1529071}}^1$

素因数の和:1529564

約数の個数: 80

約数和(自身を含む): 4798521517824

約数和(自身を除く): 2793481296944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 443, 592, 740, 886, 1480, 1772, 2215, 2960, 3544, 4430, 7088, 8860, 16391, 17720, 32782, 35440, 65564, 81955, 131128, 163910, 262256, 327820, 655640, 1311280, 1529071, 3058142, 6116284, 7645355, 12232568, 15290710, 24465136, 30581420, 56575627, 61162840, 113151254, 122325680, 226302508, 282878135, 452605016, 565756270, 677378453, 905210032, 1131512540, 1354756906, 2263025080, 2709513812, 3386892265, 4526050160, 5419027624, 6773784530, 10838055248, 13547569060, 25063002761, 27095138120, 50126005522, 54190276240, 100252011044, 125315013805, 200504022088, 250630027610, 401008044176, 501260055220, 1002520110440, 2005040220880]

約数ペア:

[(1, 2005040220880), (2, 1002520110440), (4, 501260055220), (5, 401008044176), (8, 250630027610), (10, 200504022088), (16, 125315013805), (20, 100252011044), (37, 54190276240), (40, 50126005522), (74, 27095138120), (80, 25063002761), (148, 13547569060), (185, 10838055248), (296, 6773784530), (370, 5419027624), (443, 4526050160), (592, 3386892265), (740, 2709513812), (886, 2263025080), (1480, 1354756906), (1772, 1131512540), (2215, 905210032), (2960, 677378453), (3544, 565756270), (4430, 452605016), (7088, 282878135), (8860, 226302508), (16391, 122325680), (17720, 113151254), (32782, 61162840), (35440, 56575627), (65564, 30581420), (81955, 24465136), (131128, 15290710), (163910, 12232568), (262256, 7645355), (327820, 6116284), (655640, 3058142), (1311280, 1529071)]