161749225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 231413760

約数和(自身を除く): 69664535

約数列:

[1, 5, 11, 23, 25, 55, 107, 115, 239, 253, 275, 535, 575, 1177, 1195, 1265, 2461, 2629, 2675, 5497, 5885, 5975, 6325, 12305, 13145, 25573, 27071, 27485, 29425, 60467, 61525, 65725, 127865, 135355, 137425, 281303, 302335, 588179, 639325, 676775, 1406515, 1511675, 2940895, 6469969, 7032575, 14704475, 32349845, 161749225]

約数ペア:

[(1, 161749225), (5, 32349845), (11, 14704475), (23, 7032575), (25, 6469969), (55, 2940895), (107, 1511675), (115, 1406515), (239, 676775), (253, 639325), (275, 588179), (535, 302335), (575, 281303), (1177, 137425), (1195, 135355), (1265, 127865), (2461, 65725), (2629, 61525), (2675, 60467), (5497, 29425), (5885, 27485), (5975, 27071), (6325, 25573), (12305, 13145)]