66997268

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 138001248

約数和(自身を除く): 71003980

約数列:

[1, 2, 4, 13, 19, 26, 38, 43, 52, 76, 83, 86, 166, 172, 247, 332, 361, 494, 559, 722, 817, 988, 1079, 1118, 1444, 1577, 1634, 2158, 2236, 3154, 3268, 3569, 4316, 4693, 6308, 7138, 9386, 10621, 14276, 15523, 18772, 20501, 21242, 29963, 31046, 41002, 42484, 46397, 59926, 62092, 67811, 82004, 92794, 119852, 135622, 185588, 201799, 271244, 389519, 403598, 779038, 807196, 881543, 1288409, 1558076, 1763086, 2576818, 3526172, 5153636, 16749317, 33498634, 66997268]

約数ペア:

[(1, 66997268), (2, 33498634), (4, 16749317), (13, 5153636), (19, 3526172), (26, 2576818), (38, 1763086), (43, 1558076), (52, 1288409), (76, 881543), (83, 807196), (86, 779038), (166, 403598), (172, 389519), (247, 271244), (332, 201799), (361, 185588), (494, 135622), (559, 119852), (722, 92794), (817, 82004), (988, 67811), (1079, 62092), (1118, 59926), (1444, 46397), (1577, 42484), (1634, 41002), (2158, 31046), (2236, 29963), (3154, 21242), (3268, 20501), (3569, 18772), (4316, 15523), (4693, 14276), (6308, 10621), (7138, 9386)]