20983670140

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1297}}^1\times {\mathrm{21863}}^1$

素因数の和:23206

約数の個数: 48

約数和(自身を含む): 45293637312

約数和(自身を除く): 24309967172

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 1297, 2594, 5188, 6485, 12970, 21863, 25940, 43726, 47989, 87452, 95978, 109315, 191956, 218630, 239945, 437260, 479890, 808931, 959780, 1617862, 3235724, 4044655, 8089310, 16178620, 28356311, 56712622, 113425244, 141781555, 283563110, 567126220, 1049183507, 2098367014, 4196734028, 5245917535, 10491835070, 20983670140]

約数ペア:

[(1, 20983670140), (2, 10491835070), (4, 5245917535), (5, 4196734028), (10, 2098367014), (20, 1049183507), (37, 567126220), (74, 283563110), (148, 141781555), (185, 113425244), (370, 56712622), (740, 28356311), (1297, 16178620), (2594, 8089310), (5188, 4044655), (6485, 3235724), (12970, 1617862), (21863, 959780), (25940, 808931), (43726, 479890), (47989, 437260), (87452, 239945), (95978, 218630), (109315, 191956)]