20194889216

素因数分解:

$2^9\times {\mathrm{197}}^1\times {\mathrm{347}}^1\times {\mathrm{577}}^1$

素因数の和:1139

約数の個数: 80

約数和(自身を含む): 40742521776

約数和(自身を除く): 20547632560

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 197, 256, 347, 394, 512, 577, 694, 788, 1154, 1388, 1576, 2308, 2776, 3152, 4616, 5552, 6304, 9232, 11104, 12608, 18464, 22208, 25216, 36928, 44416, 50432, 68359, 73856, 88832, 100864, 113669, 136718, 147712, 177664, 200219, 227338, 273436, 295424, 400438, 454676, 546872, 800876, 909352, 1093744, 1601752, 1818704, 2187488, 3203504, 3637408, 4374976, 6407008, 7274816, 8749952, 12814016, 14549632, 17499904, 25628032, 29099264, 34999808, 39443143, 51256064, 58198528, 78886286, 102512128, 157772572, 315545144, 631090288, 1262180576, 2524361152, 5048722304, 10097444608, 20194889216]

約数ペア:

[(1, 20194889216), (2, 10097444608), (4, 5048722304), (8, 2524361152), (16, 1262180576), (32, 631090288), (64, 315545144), (128, 157772572), (197, 102512128), (256, 78886286), (347, 58198528), (394, 51256064), (512, 39443143), (577, 34999808), (694, 29099264), (788, 25628032), (1154, 17499904), (1388, 14549632), (1576, 12814016), (2308, 8749952), (2776, 7274816), (3152, 6407008), (4616, 4374976), (5552, 3637408), (6304, 3203504), (9232, 2187488), (11104, 1818704), (12608, 1601752), (18464, 1093744), (22208, 909352), (25216, 800876), (36928, 546872), (44416, 454676), (50432, 400438), (68359, 295424), (73856, 273436), (88832, 227338), (100864, 200219), (113669, 177664), (136718, 147712)]