28254080

素因数分解:

$2^7\times 5^1\times {\mathrm{131}}^1\times {\mathrm{337}}^1$

素因数の和:487

約数の個数: 64

約数和(自身を含む): 68262480

約数和(自身を除く): 40008400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 131, 160, 262, 320, 337, 524, 640, 655, 674, 1048, 1310, 1348, 1685, 2096, 2620, 2696, 3370, 4192, 5240, 5392, 6740, 8384, 10480, 10784, 13480, 16768, 20960, 21568, 26960, 41920, 43136, 44147, 53920, 83840, 88294, 107840, 176588, 215680, 220735, 353176, 441470, 706352, 882940, 1412704, 1765880, 2825408, 3531760, 5650816, 7063520, 14127040, 28254080]

約数ペア:

[(1, 28254080), (2, 14127040), (4, 7063520), (5, 5650816), (8, 3531760), (10, 2825408), (16, 1765880), (20, 1412704), (32, 882940), (40, 706352), (64, 441470), (80, 353176), (128, 220735), (131, 215680), (160, 176588), (262, 107840), (320, 88294), (337, 83840), (524, 53920), (640, 44147), (655, 43136), (674, 41920), (1048, 26960), (1310, 21568), (1348, 20960), (1685, 16768), (2096, 13480), (2620, 10784), (2696, 10480), (3370, 8384), (4192, 6740), (5240, 5392)]