205574138

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{457}}^1$

素因数の和:627

約数の個数: 64

約数和(自身を含む): 405209088

約数和(自身を除く): 199634950

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 77, 127, 154, 161, 253, 254, 322, 457, 506, 889, 914, 1397, 1771, 1778, 2794, 2921, 3199, 3542, 5027, 5842, 6398, 9779, 10054, 10511, 19558, 20447, 21022, 32131, 35189, 40894, 58039, 64262, 70378, 73577, 115621, 116078, 147154, 224917, 231242, 406273, 449834, 638429, 809347, 812546, 1276858, 1334897, 1618694, 2669794, 4469003, 8938006, 9344279, 14683867, 18688558, 29367734, 102787069, 205574138]

約数ペア:

[(1, 205574138), (2, 102787069), (7, 29367734), (11, 18688558), (14, 14683867), (22, 9344279), (23, 8938006), (46, 4469003), (77, 2669794), (127, 1618694), (154, 1334897), (161, 1276858), (253, 812546), (254, 809347), (322, 638429), (457, 449834), (506, 406273), (889, 231242), (914, 224917), (1397, 147154), (1771, 116078), (1778, 115621), (2794, 73577), (2921, 70378), (3199, 64262), (3542, 58039), (5027, 40894), (5842, 35189), (6398, 32131), (9779, 21022), (10054, 20447), (10511, 19558)]