28305175240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{76081}}^1$

素因数の和:76294

約数の個数: 64

約数和(自身を含む): 65077499520

約数和(自身を除く): 36772324280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 131, 142, 262, 284, 355, 524, 568, 655, 710, 1048, 1310, 1420, 2620, 2840, 5240, 9301, 18602, 37204, 46505, 74408, 76081, 93010, 152162, 186020, 304324, 372040, 380405, 608648, 760810, 1521620, 3043240, 5401751, 9966611, 10803502, 19933222, 21607004, 27008755, 39866444, 43214008, 49833055, 54017510, 79732888, 99666110, 108035020, 199332220, 216070040, 398664440, 707629381, 1415258762, 2830517524, 3538146905, 5661035048, 7076293810, 14152587620, 28305175240]

約数ペア:

[(1, 28305175240), (2, 14152587620), (4, 7076293810), (5, 5661035048), (8, 3538146905), (10, 2830517524), (20, 1415258762), (40, 707629381), (71, 398664440), (131, 216070040), (142, 199332220), (262, 108035020), (284, 99666110), (355, 79732888), (524, 54017510), (568, 49833055), (655, 43214008), (710, 39866444), (1048, 27008755), (1310, 21607004), (1420, 19933222), (2620, 10803502), (2840, 9966611), (5240, 5401751), (9301, 3043240), (18602, 1521620), (37204, 760810), (46505, 608648), (74408, 380405), (76081, 372040), (93010, 304324), (152162, 186020)]