20108946172

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1069}}^1\times {\mathrm{1861}}^1$

素因数の和:2979

約数の個数: 72

約数和(自身を含む): 42508566240

約数和(自身を除く): 22399620068

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 361, 532, 722, 1069, 1444, 1861, 2138, 2527, 3722, 4276, 5054, 7444, 7483, 10108, 13027, 14966, 20311, 26054, 29932, 35359, 40622, 52108, 70718, 81244, 141436, 142177, 247513, 284354, 385909, 495026, 568708, 671821, 771818, 990052, 1343642, 1543636, 1989409, 2687284, 2701363, 3978818, 4702747, 5402726, 7957636, 9405494, 10805452, 13925863, 18810988, 27851726, 37798771, 55703452, 75597542, 151195084, 264591397, 529182794, 718176649, 1058365588, 1436353298, 2872706596, 5027236543, 10054473086, 20108946172]

約数ペア:

[(1, 20108946172), (2, 10054473086), (4, 5027236543), (7, 2872706596), (14, 1436353298), (19, 1058365588), (28, 718176649), (38, 529182794), (76, 264591397), (133, 151195084), (266, 75597542), (361, 55703452), (532, 37798771), (722, 27851726), (1069, 18810988), (1444, 13925863), (1861, 10805452), (2138, 9405494), (2527, 7957636), (3722, 5402726), (4276, 4702747), (5054, 3978818), (7444, 2701363), (7483, 2687284), (10108, 1989409), (13027, 1543636), (14966, 1343642), (20311, 990052), (26054, 771818), (29932, 671821), (35359, 568708), (40622, 495026), (52108, 385909), (70718, 284354), (81244, 247513), (141436, 142177)]